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校验Ipv4 ipv6的格式 python
1、校验Ipv4的格式
#校验Ipv4的格式
def checkipv4(ipv4):
matchobj = re.match(r'^(((\d{1,2})|(1\d{1,2})|(2[0-4]\d)|(25[0-5]))\.){3}((\d{1,2})|(1\d{1,2})|(2[0-4]\d)|(25[0-5]))$',ipv4)
if matchobj:
return True
else:
return False
测试用例：
class IPv4MethodsTest(unittest.TestCase):
def test_checkipv4(self):
self.assertEqual(IPNumConvertMethods.checkipv4(''), False)
self.assertEqual(IPNumConvertMethods.checkipv4('256.1.1.1'), False)
self.assertEqual(IPNumConvertMethods.checkipv4('255.255.255.255'), True)
self.assertEqual(IPNumConvertMethods.checkipv4('0.0.0.0'), True)
self.assertEqual(IPNumConvertMethods.checkipv4('192.168.2.2'), True)
self.assertEqual(IPNumConvertMethods.checkipv4('-192.168.2.2'), False)
self.assertEqual(IPNumConvertMethods.checkipv4('255.255.255.256'), False)
2、校验Ipv6的格式
IPv6的地址长度为128位，是IPv4地址长度的4倍。于是IPv4点分十进制格式不再适用，采用十六进制表示。IPv6有3种表示方法。
2.1 冒分十六进制表示法
格式为X:X:X:X:X:X:X:X，其中每个X表示地址中的16位，以十六进制表示，例如：
ABCD:EF01:2345:6789:ABCD:EF01:2345:6789
这种表示法中，每个X的前导0是可以省略的，例如：
2001:0DB8:0000:0023:0008:0800:200C:417A→ 2001:DB8:0:23:8:800:200C:417A
2.2 0位压缩表示法
在某些情况下，一个IPv6地址中问可能包含很长的一段0，可以把连续的一段0压缩为“::”。但为保证地址解析的唯一性，地址中”::”只能出现一次，例如：
FF01:0:0:0:0:0:0:1101 → FF01::1101
0:0:0:0:0:0:0:1 → ::1
0:0:0:0:0:0:0:0 → ::
2.3 内嵌IPv4地址表示法
为了实现IPv4-IPv6互通，IPv4地址会嵌入IPv6地址中，此时地址常表示为：X:X:X:X:X:X:d.d.d.d，前96b采用冒分十六进制表示，而最后32b地址则使用IPv4的点分十进制表示，例如::192.168.0.1与::FFFF:192.168.0.1就是两个典型的例子，注意在前96b中，压缩0位的方法依旧适用。
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
测试用例：
class IPv4MethodsTest(unittest.TestCase):
def test_checkipv6(self):
self.assertEqual(IPNumConvertMethods.checkipv6(''),False)
self.assertEqual(IPNumConvertMethods.checkipv6('5e::5668::eeee'), False)
self.assertEqual(IPNumConvertMethods.checkipv6('55555:5e:0:0:0:0:0:5668:eeee'), False)
self.assertEqual(IPNumConvertMethods.checkipv6('55555:5e:0:0:0:0:0'), False)
self.assertEqual(IPNumConvertMethods.checkipv6('2001:DB8:0:23:8:800:200C:417A'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('FF01::1101'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('::1'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('5555:5e::'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('::'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('FFFF::192.168.0.1'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('::192.168.0.1'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('::FFFF:192.168.0.1'), True)
self.assertEqual(IPNumConvertMethods.checkipv6('2001:DB8:0:23:8:800:192.168.0.1'), True)
还有其他的一些，没写到脚本里
{"1:12:123:1234:2345:3456:4567:abCD", "true"},
{"1:12:123:1234:2345:3456:4567::", "true"},
{"1:12:123:1234:2345:3456::", "true"},
{"1:12:123:1234:2345::", "true"},
{"1:12:123:1234::", "true"},
{"1:12:123::", "true"},
{"1:12::", "true"},
{"1::", "true"},
{"::abCD", "true"},
{"::4567:abCD", "true"},
{"::3456:4567:abCD", "true"},
{"::2345:3456:4567:abCD", "true"},
{"::1234:2345:3456:4567:abCD", "true"},
{"::123:1234:2345:3456:4567:abCD", "true"},
{"::12:123:1234:2345:3456:4567:abCD", "true"},
{"1::123:1234:2345:3456:4567:abCD", "true"},
{"1:12::1234:2345:3456:4567:abCD", "true"},
{"1:12:123::2345:3456:4567:abCD", "true"},
{"1:12:123:1234::3456:4567:abCD", "true"},
{"1:12:123:1234:2345::4567:abCD", "true"},
{"1:12:123:1234:2345:3456::abCD", "true"},
{"1::1234:2345:3456:4567:abCD", "true"},
{"1:12::2345:3456:4567:abCD", "true"},
{"1:12:123::3456:4567:abCD", "true"},
{"1:12:123:1234::4567:abCD", "true"},
{"1:12:123:1234:2345::abCD", "true"},
{"1::2345:3456:4567:abCD", "true"},
{"1:12::3456:4567:abCD", "true"},
{"1:12:123::4567:abCD", "true"},
{"1:12:123:1234::abCD", "true"},
{"1::3456:4567:abCD", "true"},
{"1:12::4567:abCD", "true"},
{"1:12:123::abCD", "true"},
{"1::4567:abCD", "true"},
{"1:12::abCD", "true"},
{"1::abCD", "true"},
{"::", "true"},
{"1:12:123:1234:2345:3456:192.168.0.1", "true"},
{"1:12:123:1234:2345:3456:192.168.0.1", "true"},
{"::12:123:1234:2345:3456:192.168.0.1", "true"},
{"1::123:1234:2345:3456:192.168.0.1", "true"},
{"1:12::1234:2345:3456:192.168.0.1", "true"},
{"1:12:123::2345:3456:192.168.0.1", "true"},
{"1:12:123:1234::3456:192.168.0.1", "true"},
{"1:12:123:1234:2345::192.168.0.1", "true"},
{"::123:1234:2345:3456:192.168.0.1", "true"},
{"1::1234:2345:3456:192.168.0.1", "true"},
{"1:12::2345:3456:192.168.0.1", "true"},
{"1:12:123::3456:192.168.0.1", "true"},
{"1:12:123:1234::192.168.0.1", "true"},
{"::1234:2345:3456:192.168.0.1", "true"},
{"1::2345:3456:192.168.0.1", "true"},
{"1:12::3456:192.168.0.1", "true"},
{"1:12:123::192.168.0.1", "true"},
{"::2345:3456:192.168.0.1", "true"},
{"1::3456:192.168.0.1", "true"},
{"1:12::192.168.0.1", "true"},
{"::3456:192.168.0.1", "true"},
{"1::192.168.0.1", "true"},
{"::192.168.0.1", "true"},
{"1:12:123:1234:2345:3456:192.168.0.1", "true"},
{"::192.168.0.1", "true"},