校驗(yàn)Ipv4 ipv6的格式 python

1、校驗(yàn)Ipv4的格式

#校驗(yàn)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 Trueelse:return False

測(cè)試用例：

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、校驗(yàn)Ipv6的格式

IPv6的地址長(zhǎng)度為128位，是IPv4地址長(zhǎng)度的4倍。于是IPv4點(diǎn)分十進(jìn)制格式不再適用，采用十六進(jìn)制表示。IPv6有3種表示方法。
2.1 冒分十六進(jìn)制表示法
　　格式為X:X:X:X:X:X:X:X，其中每個(gè)X表示地址中的16位，以十六進(jìn)制表示，例如：
　　ABCD:EF01:2345:6789:ABCD:EF01:2345:6789
　　這種表示法中，每個(gè)X的前導(dǎo)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位壓縮表示法
　　在某些情況下，一個(gè)IPv6地址中問(wèn)可能包含很長(zhǎng)的一段0，可以把連續(xù)的一段0壓縮為“::”。但為保證地址解析的唯一性，地址中”::”只能出現(xiàn)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 內(nèi)嵌IPv4地址表示法
　　為了實(shí)現(xiàn)IPv4-IPv6互通，IPv4地址會(huì)嵌入IPv6地址中，此時(shí)地址常表示為：X:X:X:X:X:X:d.d.d.d，前96b采用冒分十六進(jìn)制表示，而最后32b地址則使用IPv4的點(diǎn)分十進(jìn)制表示，例如::192.168.0.1與::FFFF:192.168.0.1就是兩個(gè)典型的例子，注意在前96b中，壓縮0位的方法依舊適用。

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 Trueelse:return False

測(cè)試用例：

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)

還有其他的一些，沒(méi)寫到腳本里

{"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"},

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