python IPv6 十进制和十六进制互转

#!/usr/bin/python
# -*- coding: UTF-8 -*- import re def ipv62dec(ipv6):
if checkipv6(ipv6):
compressIndex = ipv6.find('::')
print("compressIndex:"+str(compressIndex)) ipv4Index = ipv6.find('.')
print("ipv4Index:"+str(ipv4Index)) if compressIndex==-1 and ipv4Index==-1:
print 'num: %d' % (noCompressipv62dec(ipv6))
elif compressIndex!=-1 and ipv4Index==-1:
print 'num: %d' % (compressipv62dec(ipv6))
elif compressIndex==-1 and ipv4Index!=-1:
ipv4,ipv6=ipv4v6Split(ipv6)
if ipv4 and ipv6:
print 'num: %d' % (ipv42dec(ipv4)+noCompressipv62dec(ipv6))
else:
return ""
elif compressIndex != -1 and ipv4Index != -1:
ipv4, ipv6 = ipv4v6Split(ipv6)
if ipv4 and ipv6:
print 'num: %d' % (ipv42dec(ipv4)+compressipv62dec(ipv6))
else:
return ""
else:
return ""
else:
return "" def ipv42dec(ip):
dec_value = 0
v_list = ip.split('.')
v_list.reverse()
t = 1
for v in v_list:
dec_value += int(v) * t
t = t * (2 ** 8)
return dec_value #Ipv6每段不补齐0 形成完整的4位，如2001:DB8:0:23:8:800:200C:417A，补齐为2001:0DB8:0000:0023:0008:0800:200C:417A
def ipseg2str(ipseglist):
ipstr=''
for ipseg in ipseglist:
if len(ipseg) == 1:
ipseg = '' + ipseg
elif len(ipseg) == 2:
ipseg = '' + ipseg
elif len(ipseg) == 3:
ipseg = '' + ipseg
elif len(ipseg) == 4:
ipseg = ipseg
else:
return ""
ipstr += ipseg
return ipstr ##没有0压缩的Ipv6转换为十进制，如2001:DB8:0:23:8:800:200C:417A
def noCompressipv62dec(ipv6):
iplist = ipv6.split(":")
if iplist:
ipstr = ipseg2str(iplist)
print(ipstr)
return int(ipstr, 16)
else:
return "" #带0压缩的ipv6转换为十进制，如FF01::1101
def compressipv62dec(ipv6):
compressList = ipv6.split("::")
print("compressList:" + str(compressList))
ipstr = ""
part1 = []
part2 = []
if len(compressList) == 2:
part1 = compressList[0].split(":") if compressList[0] else []
part2 = compressList[1].split(":") if compressList[1] else []
if part1 or part2:
ipstr += ipseg2str(part1)
for i in range(8 - len(part1) - len(part2)):
ipstr += ''
ipstr += ipseg2str(part2)
print("ipstr:" + ipstr)
return int(ipstr, 16)
else:
return "" #将内嵌ipv4的ipv6中的ipv6和ipv4分隔开，如FFFF::192.168.0.1 分隔为ipv4 192.168.0.1 ipv6 FFFF::0000:0000
def ipv4v6Split(ipv6):
ipv4str = ''
ipv6str = ''
if checkipv6(ipv6):
list = ipv6.split(":")
if list:
ipv4str = list[len(list) - 1]
list.pop()
ipv6str = ":".join(list) + ":0000:0000"
print("ipv4:" + ipv4str)
print("ipv6:" + ipv6str)
return ipv4str,ipv6str #校验ipv6的格式
def checkipv6(ipv6):
matchobj = re.match(r'^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$',ipv6)
if matchobj:
return True
else:
return False ipv62dec('55555:5e:0:0:0:0:0:5668:eeee')
ipv62dec('5555:5e:0:0:0:0:0:5668')
ipv62dec('5555:5e::5668')
ipv62dec('5555:5e::')
ipv62dec('::5555:5e')
ipv62dec('2001:DB8:0:23:8:800:192.168.0.1')
ipv62dec('FFFF::192.168.0.1')
ipv62dec('::192.168.0.1')
ipv62dec('::FFFF:192.168.0.1')

#!/usr/bin/python
# -*- coding: UTF-8 -*- import re #将ipv6中段中的0压缩，如005e 压缩为5e
def subZero(ipseg):
index=0
for i in range(len(ipseg)):
if ipseg[i]=='':
index+=1
else:
break
if index>=2:
return ipseg[index:] if ipseg[index:] else ''
else:
return ipseg #将十进制数转换为ipv6
def dec2ipv6(dec):
if checkdec(dec) and int(dec)<=340282366920938463463374607431768211455:
hexstr=(hex(int(dec)))[2:]
hexstrlen = len(hexstr)
while hexstrlen<32:
hexstr=''+hexstr
hexstrlen+=1
result=subZero(hexstr[0:4])+":"+subZero(hexstr[4:8])+":"+subZero(hexstr[8:12])+":"+subZero(hexstr[12:16])+":"+subZero(hexstr[16:20])+":"+subZero(hexstr[20:24])+":"+subZero(hexstr[24:28])+":"+subZero(hexstr[28:])
print("result:"+result)
return result
else:
return "" #校验十进制数字
def checkdec(dec):
matchobj = re.match(r'(0[dD])?[0-9]+$',dec)
if matchobj:
return True
else:
return False dec2ipv6('')
dec2ipv6('')
dec2ipv6('')
dec2ipv6('')
dec2ipv6('')