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62 lines
2.2 KiB
Python
62 lines
2.2 KiB
Python
##########################################################################
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#
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# pgAdmin 4 - PostgreSQL Tools
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#
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# Copyright (C) 2013 - 2020, The pgAdmin Development Team
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# This software is released under the PostgreSQL Licence
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#
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#########################################################################
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"""This File Provides ipv4 and ipv6 address check."""
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import re
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IPV4SEG = r'(?:25[0-5]|(?:2[0-4]|1{0,1}[0-9]){0,1}[0-9])'
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IPV4ADDR = r'(?:(?:' + IPV4SEG + r'\.){3,3}' + IPV4SEG + r')'
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IPV6SEG = r'(?:(?:[0-9a-fA-F]){1,4})'
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IPV6GROUPS = (
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# 1:2:3:4:5:6:7:8
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r'(?:' + IPV6SEG + r':){7,7}' + IPV6SEG,
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# 1:: 1:2:3:4:5:6:7::
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r'(?:' + IPV6SEG + r':){1,7}:',
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# 1::8 1:2:3:4:5:6::8 1:2:3:4:5:6::8
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r'(?:' + IPV6SEG + r':){1,6}:' + IPV6SEG,
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# 1::7:8 1:2:3:4:5::7:8 1:2:3:4:5::8
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r'(?:' + IPV6SEG + r':){1,5}(?::' + IPV6SEG + r'){1,2}',
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# 1::6:7:8 1:2:3:4::6:7:8 1:2:3:4::8
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r'(?:' + IPV6SEG + r':){1,4}(?::' + IPV6SEG + r'){1,3}',
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# 1::5:6:7:8 1:2:3::5:6:7:8 1:2:3::8
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r'(?:' + IPV6SEG + r':){1,3}(?::' + IPV6SEG + r'){1,4}',
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# 1::4:5:6:7:8 1:2::4:5:6:7:8 1:2::8
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r'(?:' + IPV6SEG + r':){1,2}(?::' + IPV6SEG + r'){1,5}',
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# 1::3:4:5:6:7:8 1::3:4:5:6:7:8 1::8
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IPV6SEG + r':(?:(?::' + IPV6SEG + r'){1,6})',
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# ::2:3:4:5:6:7:8 ::2:3:4:5:6:7:8 ::8 ::
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r':(?:(?::' + IPV6SEG + r'){1,7}|:)',
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# fe80::7:8%eth0 fe80::7:8%1 (link-local IPv6 addresses with zone index)
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r'fe80:(?::' + IPV6SEG + r'){0,4}%[0-9a-zA-Z]{1,}',
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# ::255.255.255.255 ::ffff:255.255.255.255 ::ffff:0:255.255.255.255
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# (IPv4-mapped IPv6 addresses and IPv4-translated addresses)
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r'::(?:ffff(?::0{1,4}){0,1}:){0,1}[^\s:]' + IPV4ADDR,
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# 2001:db8:3:4::192.0.2.33 64:ff9b::192.0.2.33
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# (IPv4-Embedded IPv6 Address)
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r'(?:' + IPV6SEG + r':){1,4}:[^\s:]' + IPV4ADDR,
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)
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# Reverse rows for greedy match
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IPV6ADDR = '|'.join(['(?:{})'.format(g) for g in IPV6GROUPS[::-1]])
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ip6re = re.compile(IPV6ADDR)
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ip4re = re.compile(IPV4ADDR)
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def is_valid_ip4address(addr):
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return ip4re.match(addr)
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def is_valid_ip6address(addr):
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return ip6re.match(addr)
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def is_valid_ipaddress(addr):
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return ip4re.match(addr) or is_valid_ip6address(addr)
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