669 lines
23 KiB
Python
669 lines
23 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Pure Python GeoIP API
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The API is based on MaxMind's C-based Python API, but the code itself is
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ported from the Pure PHP GeoIP API by Jim Winstead and Hans Lellelid.
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@author: Jennifer Ennis <zaylea@gmail.com>
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@license: Copyright(C) 2004 MaxMind LLC
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/lgpl.txt>.
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"""
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import os
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import math
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import socket
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import mmap
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import codecs
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from threading import Lock
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try:
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from StringIO import StringIO
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except ImportError:
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from io import StringIO, BytesIO
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from pygeoip import util, const
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from pygeoip.const import PY2, PY3
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from pygeoip.timezone import time_zone_by_country_and_region
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STANDARD = const.STANDARD
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MMAP_CACHE = const.MMAP_CACHE
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MEMORY_CACHE = const.MEMORY_CACHE
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ENCODING = const.ENCODING
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class GeoIPError(Exception):
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pass
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class GeoIPMetaclass(type):
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def __new__(cls, *args, **kwargs):
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"""
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Singleton method to gets an instance without reparsing the db. Unique
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instances are instantiated based on the filename of the db. Flags are
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ignored for this, i.e. if you initialize one with STANDARD
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flag (default) and then try later to initialize with MEMORY_CACHE, it
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will still return the STANDARD one.
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"""
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if not hasattr(cls, '_instances'):
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cls._instances = {}
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if len(args) > 0:
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filename = args[0]
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elif 'filename' in kwargs:
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filename = kwargs['filename']
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if filename not in cls._instances:
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cls._instances[filename] = type.__new__(cls, *args, **kwargs)
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return cls._instances[filename]
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GeoIPBase = GeoIPMetaclass('GeoIPBase', (object,), {})
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class GeoIP(GeoIPBase):
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def __init__(self, filename, flags=0):
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"""
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Initialize the class.
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@param filename: Path to a geoip database.
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@type filename: str
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@param flags: Flags that affect how the database is processed.
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Currently supported flags are STANDARD (the default),
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MEMORY_CACHE (preload the whole file into memory) and
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MMAP_CACHE (access the file via mmap).
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@type flags: int
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"""
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self._filename = filename
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self._flags = flags
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if self._flags & const.MMAP_CACHE:
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f = open(filename, 'rb')
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access = mmap.ACCESS_READ
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self._filehandle = mmap.mmap(f.fileno(), 0, access=access)
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f.close()
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elif self._flags & const.MEMORY_CACHE:
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f = open(filename, 'rb')
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self._memoryBuffer = f.read()
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iohandle = BytesIO if PY3 else StringIO
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self._filehandle = iohandle(self._memoryBuffer)
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f.close()
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else:
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self._filehandle = codecs.open(filename, 'rb', ENCODING)
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self._lock = Lock()
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self._setup_segments()
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def _setup_segments(self):
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"""
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Parses the database file to determine what kind of database is
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being used and setup segment sizes and start points that will
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be used by the seek*() methods later.
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Supported databases:
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* COUNTRY_EDITION
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* COUNTRY_EDITION_V6
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* REGION_EDITION_REV0
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* REGION_EDITION_REV1
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* CITY_EDITION_REV0
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* CITY_EDITION_REV1
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* CITY_EDITION_REV1_V6
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* ORG_EDITION
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* ISP_EDITION
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* ASNUM_EDITION
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* ASNUM_EDITION_V6
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"""
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self._databaseType = const.COUNTRY_EDITION
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self._recordLength = const.STANDARD_RECORD_LENGTH
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self._databaseSegments = const.COUNTRY_BEGIN
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self._lock.acquire()
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filepos = self._filehandle.tell()
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self._filehandle.seek(-3, os.SEEK_END)
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for i in range(const.STRUCTURE_INFO_MAX_SIZE):
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chars = chr(255) * 3
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delim = self._filehandle.read(3)
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if PY3 and type(delim) is bytes:
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delim = delim.decode(ENCODING)
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if PY2:
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chars = chars.decode(ENCODING)
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if type(delim) is str:
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delim = delim.decode(ENCODING)
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if delim == chars:
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byte = self._filehandle.read(1)
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self._databaseType = ord(byte)
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# Compatibility with databases from April 2003 and earlier
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if (self._databaseType >= 106):
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self._databaseType -= 105
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if self._databaseType == const.REGION_EDITION_REV0:
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self._databaseSegments = const.STATE_BEGIN_REV0
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elif self._databaseType == const.REGION_EDITION_REV1:
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self._databaseSegments = const.STATE_BEGIN_REV1
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elif self._databaseType in (const.CITY_EDITION_REV0,
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const.CITY_EDITION_REV1,
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const.CITY_EDITION_REV1_V6,
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const.ORG_EDITION,
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const.ISP_EDITION,
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const.ASNUM_EDITION,
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const.ASNUM_EDITION_V6):
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self._databaseSegments = 0
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buf = self._filehandle.read(const.SEGMENT_RECORD_LENGTH)
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if PY3 and type(buf) is bytes:
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buf = buf.decode(ENCODING)
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for j in range(const.SEGMENT_RECORD_LENGTH):
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self._databaseSegments += (ord(buf[j]) << (j * 8))
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LONG_RECORDS = (const.ORG_EDITION, const.ISP_EDITION)
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if self._databaseType in LONG_RECORDS:
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self._recordLength = const.ORG_RECORD_LENGTH
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break
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else:
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self._filehandle.seek(-4, os.SEEK_CUR)
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self._filehandle.seek(filepos, os.SEEK_SET)
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self._lock.release()
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def _seek_country(self, ipnum):
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"""
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Using the record length and appropriate start points, seek to the
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country that corresponds to the converted IP address integer.
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@param ipnum: result of ip2long conversion
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@type ipnum: int
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@return: offset of start of record
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@rtype: int
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"""
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try:
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offset = 0
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seek_depth = 127 if len(str(ipnum)) > 10 else 31
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for depth in range(seek_depth, -1, -1):
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if self._flags & const.MEMORY_CACHE:
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startIndex = 2 * self._recordLength * offset
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endIndex = startIndex + (2 * self._recordLength)
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buf = self._memoryBuffer[startIndex:endIndex]
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else:
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startIndex = 2 * self._recordLength * offset
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readLength = 2 * self._recordLength
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self._lock.acquire()
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self._filehandle.seek(startIndex, os.SEEK_SET)
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buf = self._filehandle.read(readLength)
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self._lock.release()
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if PY3 and type(buf) is bytes:
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buf = buf.decode(ENCODING)
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x = [0, 0]
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for i in range(2):
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for j in range(self._recordLength):
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byte = buf[self._recordLength * i + j]
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x[i] += ord(byte) << (j * 8)
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if ipnum & (1 << depth):
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if x[1] >= self._databaseSegments:
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return x[1]
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offset = x[1]
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else:
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if x[0] >= self._databaseSegments:
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return x[0]
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offset = x[0]
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except:
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pass
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raise GeoIPError('Corrupt database')
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def _get_org(self, ipnum):
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"""
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Seek and return organization or ISP name for ipnum.
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@param ipnum: Converted IP address
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@type ipnum: int
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@return: org/isp name
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@rtype: str
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"""
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seek_org = self._seek_country(ipnum)
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if seek_org == self._databaseSegments:
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return None
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read_length = (2 * self._recordLength - 1) * self._databaseSegments
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self._lock.acquire()
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self._filehandle.seek(seek_org + read_length, os.SEEK_SET)
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buf = self._filehandle.read(const.MAX_ORG_RECORD_LENGTH)
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self._lock.release()
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if PY3 and type(buf) is bytes:
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buf = buf.decode(ENCODING)
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return buf[:buf.index(chr(0))]
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def _get_region(self, ipnum):
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"""
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Seek and return the region info (dict containing country_code
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and region_name).
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@param ipnum: Converted IP address
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@type ipnum: int
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@return: dict containing country_code and region_name
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@rtype: dict
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"""
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region = ''
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country_code = ''
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seek_country = self._seek_country(ipnum)
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def get_region_name(offset):
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region1 = chr(offset // 26 + 65)
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region2 = chr(offset % 26 + 65)
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return ''.join([region1, region2])
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if self._databaseType == const.REGION_EDITION_REV0:
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seek_region = seek_country - const.STATE_BEGIN_REV0
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if seek_region >= 1000:
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country_code = 'US'
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region = get_region_name(seek_region - 1000)
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else:
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country_code = const.COUNTRY_CODES[seek_region]
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elif self._databaseType == const.REGION_EDITION_REV1:
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seek_region = seek_country - const.STATE_BEGIN_REV1
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if seek_region < const.US_OFFSET:
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pass
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elif seek_region < const.CANADA_OFFSET:
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country_code = 'US'
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region = get_region_name(seek_region - const.US_OFFSET)
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elif seek_region < const.WORLD_OFFSET:
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country_code = 'CA'
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region = get_region_name(seek_region - const.CANADA_OFFSET)
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else:
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index = (seek_region - const.WORLD_OFFSET) // const.FIPS_RANGE
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if index in const.COUNTRY_CODES:
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country_code = const.COUNTRY_CODES[index]
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elif self._databaseType in const.CITY_EDITIONS:
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rec = self._get_record(ipnum)
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region = rec.get('region_name', '')
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country_code = rec.get('country_code', '')
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return {'country_code': country_code, 'region_name': region}
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def _get_record(self, ipnum):
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"""
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Populate location dict for converted IP.
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@param ipnum: Converted IP address
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@type ipnum: int
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@return: dict with country_code, country_code3, country_name,
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region, city, postal_code, latitude, longitude,
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dma_code, metro_code, area_code, region_name, time_zone
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@rtype: dict
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"""
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seek_country = self._seek_country(ipnum)
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if seek_country == self._databaseSegments:
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return {}
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read_length = (2 * self._recordLength - 1) * self._databaseSegments
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self._lock.acquire()
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self._filehandle.seek(seek_country + read_length, os.SEEK_SET)
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buf = self._filehandle.read(const.FULL_RECORD_LENGTH)
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self._lock.release()
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if PY3 and type(buf) is bytes:
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buf = buf.decode(ENCODING)
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record = {
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'dma_code': 0,
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'area_code': 0,
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'metro_code': '',
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'postal_code': ''
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}
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latitude = 0
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longitude = 0
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buf_pos = 0
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# Get country
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char = ord(buf[buf_pos])
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record['country_code'] = const.COUNTRY_CODES[char]
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record['country_code3'] = const.COUNTRY_CODES3[char]
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record['country_name'] = const.COUNTRY_NAMES[char]
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record['continent'] = const.CONTINENT_NAMES[char]
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buf_pos += 1
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def get_data(buf, buf_pos):
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offset = buf_pos
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char = ord(buf[offset])
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while (char != 0):
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offset += 1
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char = ord(buf[offset])
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if offset > buf_pos:
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return (offset, buf[buf_pos:offset])
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return (offset, '')
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offset, record['region_name'] = get_data(buf, buf_pos)
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offset, record['city'] = get_data(buf, offset + 1)
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offset, record['postal_code'] = get_data(buf, offset + 1)
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buf_pos = offset + 1
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for j in range(3):
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char = ord(buf[buf_pos])
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buf_pos += 1
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latitude += (char << (j * 8))
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for j in range(3):
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char = ord(buf[buf_pos])
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buf_pos += 1
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longitude += (char << (j * 8))
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record['latitude'] = (latitude / 10000.0) - 180.0
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record['longitude'] = (longitude / 10000.0) - 180.0
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if self._databaseType in (const.CITY_EDITION_REV1, const.CITY_EDITION_REV1_V6):
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dmaarea_combo = 0
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if record['country_code'] == 'US':
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for j in range(3):
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char = ord(buf[buf_pos])
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dmaarea_combo += (char << (j * 8))
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buf_pos += 1
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record['dma_code'] = int(math.floor(dmaarea_combo / 1000))
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record['area_code'] = dmaarea_combo % 1000
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record['metro_code'] = const.DMA_MAP.get(record['dma_code'])
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params = (record['country_code'], record['region_name'])
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record['time_zone'] = time_zone_by_country_and_region(*params)
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return record
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def _gethostbyname(self, hostname):
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if self._databaseType in const.IPV6_EDITIONS:
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try:
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response = socket.getaddrinfo(hostname, 0, socket.AF_INET6)
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family, socktype, proto, canonname, sockaddr = response[0]
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address, port, flow, scope = sockaddr
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return address
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except socket.gaierror:
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return ''
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else:
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return socket.gethostbyname(hostname)
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def id_by_addr(self, addr):
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"""
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Get the country index.
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Looks up the index for the country which is the key for
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the code and name.
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@param addr: The IP address
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@type addr: str
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@return: network byte order 32-bit integer
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@rtype: int
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"""
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ipnum = util.ip2long(addr)
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if not ipnum:
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raise ValueError("Invalid IP address: %s" % addr)
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COUNTY_EDITIONS = (const.COUNTRY_EDITION, const.COUNTRY_EDITION_V6)
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if self._databaseType not in COUNTY_EDITIONS:
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message = 'Invalid database type, expected Country'
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raise GeoIPError(message)
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return self._seek_country(ipnum) - const.COUNTRY_BEGIN
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def country_code_by_addr(self, addr):
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"""
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Returns 2-letter country code (e.g. 'US') for specified IP address.
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Use this method if you have a Country, Region, or City database.
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@param addr: IP address
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@type addr: str
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@return: 2-letter country code
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@rtype: str
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"""
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try:
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VALID_EDITIONS = (const.COUNTRY_EDITION, const.COUNTRY_EDITION_V6)
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if self._databaseType in VALID_EDITIONS:
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ipv = 6 if addr.find(':') >= 0 else 4
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if ipv == 4 and self._databaseType != const.COUNTRY_EDITION:
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message = 'Invalid database type; expected IPv6 address'
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raise ValueError(message)
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if ipv == 6 and self._databaseType != const.COUNTRY_EDITION_V6:
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message = 'Invalid database type; expected IPv4 address'
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raise ValueError(message)
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country_id = self.id_by_addr(addr)
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return const.COUNTRY_CODES[country_id]
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elif self._databaseType in const.REGION_CITY_EDITIONS:
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return self.region_by_addr(addr).get('country_code')
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message = 'Invalid database type, expected Country, City or Region'
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raise GeoIPError(message)
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except ValueError:
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raise GeoIPError('Failed to lookup address %s' % addr)
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|
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def country_code_by_name(self, hostname):
|
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"""
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Returns 2-letter country code (e.g. 'US') for specified hostname.
|
|
Use this method if you have a Country, Region, or City database.
|
|
|
|
@param hostname: Hostname
|
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@type hostname: str
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@return: 2-letter country code
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@rtype: str
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"""
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addr = self._gethostbyname(hostname)
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return self.country_code_by_addr(addr)
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|
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def country_name_by_addr(self, addr):
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"""
|
|
Returns full country name for specified IP address.
|
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Use this method if you have a Country or City database.
|
|
|
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@param addr: IP address
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@type addr: str
|
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@return: country name
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@rtype: str
|
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"""
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try:
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VALID_EDITIONS = (const.COUNTRY_EDITION, const.COUNTRY_EDITION_V6)
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if self._databaseType in VALID_EDITIONS:
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country_id = self.id_by_addr(addr)
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return const.COUNTRY_NAMES[country_id]
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elif self._databaseType in const.CITY_EDITIONS:
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return self.record_by_addr(addr).get('country_name')
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else:
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message = 'Invalid database type, expected Country or City'
|
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raise GeoIPError(message)
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except ValueError:
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raise GeoIPError('Failed to lookup address %s' % addr)
|
|
|
|
def country_name_by_name(self, hostname):
|
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"""
|
|
Returns full country name for specified hostname.
|
|
Use this method if you have a Country database.
|
|
|
|
@param hostname: Hostname
|
|
@type hostname: str
|
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@return: country name
|
|
@rtype: str
|
|
"""
|
|
addr = self._gethostbyname(hostname)
|
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return self.country_name_by_addr(addr)
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|
|
|
def org_by_addr(self, addr):
|
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"""
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Lookup Organization, ISP or ASNum for given IP address.
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Use this method if you have an Organization, ISP or ASNum database.
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|
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@param addr: IP address
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@type addr: str
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@return: organization or ISP name
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@rtype: str
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"""
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try:
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ipnum = util.ip2long(addr)
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if not ipnum:
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raise ValueError('Invalid IP address')
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|
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valid = (const.ORG_EDITION, const.ISP_EDITION, const.ASNUM_EDITION, const.ASNUM_EDITION_V6)
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if self._databaseType not in valid:
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message = 'Invalid database type, expected Org, ISP or ASNum'
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raise GeoIPError(message)
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return self._get_org(ipnum)
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except ValueError:
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raise GeoIPError('Failed to lookup address %s' % addr)
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|
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def org_by_name(self, hostname):
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"""
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Lookup the organization (or ISP) for hostname.
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|
Use this method if you have an Organization/ISP database.
|
|
|
|
@param hostname: Hostname
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@type hostname: str
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@return: Organization or ISP name
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|
@rtype: str
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"""
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addr = self._gethostbyname(hostname)
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return self.org_by_addr(addr)
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|
|
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def record_by_addr(self, addr):
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"""
|
|
Look up the record for a given IP address.
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|
Use this method if you have a City database.
|
|
|
|
@param addr: IP address
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@type addr: str
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@return: Dictionary with country_code, country_code3, country_name,
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region, city, postal_code, latitude, longitude, dma_code,
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metro_code, area_code, region_name, time_zone
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|
@rtype: dict
|
|
"""
|
|
try:
|
|
ipnum = util.ip2long(addr)
|
|
if not ipnum:
|
|
raise ValueError('Invalid IP address')
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|
|
|
if self._databaseType not in const.CITY_EDITIONS:
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|
message = 'Invalid database type, expected City'
|
|
raise GeoIPError(message)
|
|
|
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rec = self._get_record(ipnum)
|
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if not rec:
|
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return None
|
|
|
|
return rec
|
|
except ValueError:
|
|
raise GeoIPError('Failed to lookup address %s' % addr)
|
|
|
|
def record_by_name(self, hostname):
|
|
"""
|
|
Look up the record for a given hostname.
|
|
Use this method if you have a City database.
|
|
|
|
@param hostname: Hostname
|
|
@type hostname: str
|
|
@return: Dictionary with country_code, country_code3, country_name,
|
|
region, city, postal_code, latitude, longitude, dma_code,
|
|
metro_code, area_code, region_name, time_zone
|
|
@rtype: dict
|
|
"""
|
|
addr = self._gethostbyname(hostname)
|
|
return self.record_by_addr(addr)
|
|
|
|
def region_by_addr(self, addr):
|
|
"""
|
|
Lookup the region for given IP address.
|
|
Use this method if you have a Region database.
|
|
|
|
@param addr: IP address
|
|
@type addr: str
|
|
@return: Dictionary containing country_code, region and region_name
|
|
@rtype: dict
|
|
"""
|
|
try:
|
|
ipnum = util.ip2long(addr)
|
|
if not ipnum:
|
|
raise ValueError('Invalid IP address')
|
|
|
|
if self._databaseType not in const.REGION_CITY_EDITIONS:
|
|
message = 'Invalid database type, expected Region or City'
|
|
raise GeoIPError(message)
|
|
|
|
return self._get_region(ipnum)
|
|
except ValueError:
|
|
raise GeoIPError('Failed to lookup address %s' % addr)
|
|
|
|
def region_by_name(self, hostname):
|
|
"""
|
|
Lookup the region for given hostname.
|
|
Use this method if you have a Region database.
|
|
|
|
@param hostname: Hostname
|
|
@type hostname: str
|
|
@return: Dictionary containing country_code, region, and region_name
|
|
@rtype: dict
|
|
"""
|
|
addr = self._gethostbyname(hostname)
|
|
return self.region_by_addr(addr)
|
|
|
|
def time_zone_by_addr(self, addr):
|
|
"""
|
|
Look up the time zone for a given IP address.
|
|
Use this method if you have a Region or City database.
|
|
|
|
@param addr: IP address
|
|
@type addr: str
|
|
@return: Time zone
|
|
@rtype: str
|
|
"""
|
|
try:
|
|
ipnum = util.ip2long(addr)
|
|
if not ipnum:
|
|
raise ValueError('Invalid IP address')
|
|
|
|
if self._databaseType not in const.CITY_EDITIONS:
|
|
message = 'Invalid database type, expected City'
|
|
raise GeoIPError(message)
|
|
|
|
return self._get_record(ipnum).get('time_zone')
|
|
except ValueError:
|
|
raise GeoIPError('Failed to lookup address %s' % addr)
|
|
|
|
def time_zone_by_name(self, hostname):
|
|
"""
|
|
Look up the time zone for a given hostname.
|
|
Use this method if you have a Region or City database.
|
|
|
|
@param hostname: Hostname
|
|
@type hostname: str
|
|
@return: Time zone
|
|
@rtype: str
|
|
"""
|
|
addr = self._gethostbyname(hostname)
|
|
return self.time_zone_by_addr(addr)
|