#!/usr/bin/env python
#-*- coding:utf-8 -*-

import socket
import urllib2
DEBUG = False  # 是否打印错误

def default_v4(): #默认连接外网的ipv4
    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    s.connect(("8.8.8.8",8))
    ip=s.getsockname()[0]
    s.close()
    return ip

def default_v6(): #默认连接外网的ipv6
    s = socket.socket(socket.AF_INET6,socket.SOCK_DGRAM)
    s.connect(('8:8:8:8:8:8:8:8',8))
    ip=s.getsockname()[0]
    s.close()
    return ip

def local_v6(i=0):  # 本地ipv6地址
    info = socket.getaddrinfo(socket.gethostname(), 0, socket.AF_INET6)
    if DEBUG:
        print(info)
    return info[i][4][0]


def local_v4(i=0):  # 本地ipv4地址
    info = socket.getaddrinfo(socket.gethostname(), 0, socket.AF_INET)
    if DEBUG:
        print(info)
    return info[i][-1][0]


def public_v4(url="http://v4.ipv6-test.com/api/myip.php"):  # 公网IPV4地址
    try:
        return urllib2.urlopen(url, timeout=60).read()
    except Exception, e:
        if DEBUG:
            print(e)


def public_v6(url="http://v6.ipv6-test.com/api/myip.php"):  # 公网IPV6地址
    try:
        return urllib2.urlopen(url, timeout=60).read()
    except Exception, e:
        if DEBUG:
            print(e)


def nku_v4():  # nku 内网ipv4地址
    host = ['http://202.113.18.106']
    for url in host:
        try:
            html = urllib2.urlopen(url, timeout=60).read()
            p = html.find("v4ip='")
            if p > 0:
                html = html[p + 6:]
                result = html[:html.find("'")].strip()
                if result != None:
                    return result
        except Exception, e:
            if DEBUG:
                print(e)
            continue