在网上看到的别人写的python2的代码，修改成了python3。
把纯真IP数据库文件qqwry.dat放到czip.py同一目录下。
#! /usr/bin/env python
# -*- coding: utf-8 -*-
# filename: czip.py import socket
import struct class CzIp:
def __init__(self, db_file='qqwry.dat'):
self.f_db = open(db_file, "rb")
bs = self.f_db.read(8)
(self.first_index, self.last_index) = struct.unpack('II', bs)
self.index_count = int((self.last_index - self.first_index) / 7 + 1)
self.cur_start_ip = None
self.cur_end_ip_offset = None
self.cur_end_ip = None
# print(self.get_version(), " 纪录总数: %d 条 "%(self.index_count)) def get_version(self):
'''
获取版本信息，最后一条IP记录 255.255.255.0-255.255.255.255 是版本信息
:return: str
'''
s = self.get_addr_by_ip(0xffffff00)
return s def _get_area_addr(self, offset=0):
if offset:
self.f_db.seek(offset)
bs = self.f_db.read(1)
(byte,) = struct.unpack('B', bs)
if byte == 0x01 or byte == 0x02:
p = self.getLong3()
if p:
return self.get_offset_string(p)
else:
return ""
else:
self.f_db.seek(-1, 1)
return self.get_offset_string(offset) def _get_addr(self, offset):
'''
获取offset处记录区地址信息(包含国家和地区)
如果是中国ip，则是 "xx省xx市 xxxxx地区" 这样的形式
(比如:"福建省 电信", "澳大利亚 墨尔本Goldenit有限公司")
:param offset:
:return:str
'''
self.f_db.seek(offset + 4)
bs = self.f_db.read(1)
(byte,) = struct.unpack('B', bs)
if byte == 0x01: # 重定向模式1
country_offset = self.getLong3()
self.f_db.seek(country_offset)
bs = self.f_db.read(1)
(b,) = struct.unpack('B', bs)
if b == 0x02:
country_addr = self.get_offset_string(self.getLong3())
self.f_db.seek(country_offset + 4)
else:
country_addr = self.get_offset_string(country_offset)
area_addr = self._get_area_addr()
elif byte == 0x02: # 重定向模式2
country_addr = self.get_offset_string(self.getLong3())
area_addr = self._get_area_addr(offset + 8)
else: # 字符串模式
country_addr = self.get_offset_string(offset + 4)
area_addr = self._get_area_addr()
return country_addr + " " + area_addr def dump(self, first, last):
'''
打印数据库中索引为first到索引为last(不包含last)的记录
:param first:
:param last:
:return:
'''
if last > self.index_count:
last = self.index_count
for index in range(first, last):
offset = self.first_index + index * 7
self.f_db.seek(offset)
buf = self.f_db.read(7)
(ip, of1, of2) = struct.unpack("IHB", buf)
address = self._get_addr(of1 + (of2 << 16))
print("%d %s %s" % (index, self.ip2str(ip), address)) def _set_ip_range(self, index):
offset = self.first_index + index * 7
self.f_db.seek(offset)
buf = self.f_db.read(7)
(self.cur_start_ip, of1, of2) = struct.unpack("IHB", buf)
self.cur_end_ip_offset = of1 + (of2 << 16)
self.f_db.seek(self.cur_end_ip_offset)
buf = self.f_db.read(4)
(self.cur_end_ip,) = struct.unpack("I", buf) def get_addr_by_ip(self, ip):
'''
通过ip查找其地址
:param ip: (int or str)
:return: str
'''
if type(ip) == str:
ip = self.str2ip(ip)
L = 0
R = self.index_count - 1
while L < R - 1:
M = int((L + R) / 2)
self._set_ip_range(M)
if ip == self.cur_start_ip:
L = M
break
if ip > self.cur_start_ip:
L = M
else:
R = M
self._set_ip_range(L)
# version information, 255.255.255.X, urgy but useful
if ip & 0xffffff00 == 0xffffff00:
self._set_ip_range(R)
if self.cur_start_ip <= ip <= self.cur_end_ip:
address = self._get_addr(self.cur_end_ip_offset)
else:
address = "未找到该IP的地址"
return address def get_ip_range(self, ip):
'''
返回ip所在记录的IP段
:param ip: ip(str or int)
:return: str
'''
if type(ip) == str:
ip = self.str2ip(ip)
self.get_addr_by_ip(ip)
range = self.ip2str(self.cur_start_ip) + ' - ' \
+ self.ip2str(self.cur_end_ip)
return range def get_offset_string(self, offset=0):
'''
获取文件偏移处的字符串(以'\0'结尾)
:param offset: 偏移
:return: str
'''
if offset:
self.f_db.seek(offset)
bs = b''
ch = self.f_db.read(1)
(byte,) = struct.unpack('B', ch)
while byte != 0:
bs += ch
ch = self.f_db.read(1)
(byte,) = struct.unpack('B', ch)
return bs.decode('gbk') def ip2str(self, ip):
'''
整数IP转化为IP字符串
:param ip:
:return:
'''
return str(ip >> 24) + '.' + str((ip >> 16) & 0xff) + '.' + str((ip >> 8) & 0xff) + '.' + str(ip & 0xff) def str2ip(self, s):
'''
IP字符串转换为整数IP
:param s:
:return:
'''
(ip,) = struct.unpack('I', socket.inet_aton(s))
return ((ip >> 24) & 0xff) | ((ip & 0xff) << 24) | ((ip >> 8) & 0xff00) | ((ip & 0xff00) << 8) def getLong3(self, offset=0):
'''
3字节的数值
:param offset:
:return:
'''
if offset:
self.f_db.seek(offset)
bs = self.f_db.read(3)
(a, b) = struct.unpack('HB', bs)
return (b << 16) + a if __name__ == '__main__':
cz = CzIp()
print(cz.get_version())
ip = '14.215.177.39'
print(cz.get_ip_range(ip))
print(cz.get_addr_by_ip(ip))
运行结果: