62 lines
1.3 KiB
Python
62 lines
1.3 KiB
Python
def _is_valid_domain(domain: str) -> bool:
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"""
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Basic domain validation.
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Args:
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domain: Domain string to validate
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Returns:
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True if domain appears valid
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"""
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if not domain or len(domain) > 253:
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return False
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# Check for valid characters and structure
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parts = domain.split('.')
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if len(parts) < 2:
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return False
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for part in parts:
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if not part or len(part) > 63:
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return False
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if not part.replace('-', '').replace('_', '').isalnum():
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return False
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return True
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def _is_valid_ip(ip: str) -> bool:
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"""
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Basic IP address validation.
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Args:
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ip: IP address string to validate
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Returns:
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True if IP appears valid
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"""
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try:
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parts = ip.split('.')
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if len(parts) != 4:
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return False
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for part in parts:
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num = int(part)
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if not 0 <= num <= 255:
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return False
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return True
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except (ValueError, AttributeError):
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return False
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def is_valid_target(target: str) -> bool:
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"""
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Checks if the target is a valid domain or IP address.
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Args:
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target: The target string to validate.
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Returns:
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True if the target is a valid domain or IP, False otherwise.
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"""
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return _is_valid_domain(target) or _is_valid_ip(target) |