23 lines
756 B
Python
23 lines
756 B
Python
import re
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import ipaddress
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def is_valid_ipv4_address(ip_addr):
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try:
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# This will return True for both public and private IPv4 addresses
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return isinstance(ipaddress.ip_address(ip_addr), ipaddress.IPv4Address)
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except ValueError:
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return False
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def parse(text):
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ipv4_regex = r'(?<!\d)(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(?!\d)'
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matches = []
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for match in re.finditer(ipv4_regex, text):
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ip_addr = match.group()
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if is_valid_ipv4_address(ip_addr):
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start_pos, end_pos = match.span()
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matches.append((ip_addr, start_pos, end_pos))
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return matches
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