@staticmethod def generate_checksum(key_part: str) -> str: """Simple checksum for validation (example)""" return hashlib.md5(key_part.encode()).hexdigest()[:4].upper()
import re import hashlib class AstroGoldLicenseHelper: """Helper for Astro Gold license key validation and formatting""" Astro Gold License Key
# Example key format: XXXX-XXXX-XXXX-XXXX KEY_PATTERN = re.compile(r'^[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}$') @staticmethod def generate_checksum(key_part: str) ->
@staticmethod def is_valid_format(key: str) -> bool: """Check if license key matches expected format""" return bool(AstroGoldLicenseHelper.KEY_PATTERN.match(key.strip().upper())) valid_keys: list) ->
@staticmethod def normalize_key(key: str) -> str: """Strip whitespace and convert to uppercase""" return key.strip().upper()
@staticmethod def verify_against_list(key: str, valid_keys: list) -> bool: """Check if key exists in a list of valid licenses""" normalized = AstroGoldLicenseHelper.normalize_key(key) return normalized in [AstroGoldLicenseHelper.normalize_key(k) for k in valid_keys]