38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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ResLib LIC 授权算法
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规则（见开发技术文档 V1.2 附录B）：
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MAC "AA-BB-CC-DD-EE-FF" -> 去横线/冒号/空格 -> "AABBCCDDEEFF"
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-> 每字符映射 A=01 B=02 ... Z=26（数字 0-9 映射为 00-09）
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-> 拼接后倒序 -> LIC 文件内容
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"""
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import re
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def normalize_mac(mac: str) -> str:
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mac = mac.strip().upper()
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mac = re.sub(r"[-:.\s]", "", mac)
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if not mac or len(mac) != 12:
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raise ValueError("MAC 地址无效，应为 12 位十六进制（如 AA-BB-CC-DD-EE-FF）")
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if not re.fullmatch(r"[0-9A-F]{12}", mac):
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raise ValueError("MAC 地址包含非法字符，仅允许 0-9、A-F")
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return mac
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def mac_to_code(mac: str) -> str:
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"""逐字符映射：A=01 B=02 ... Z=26，数字 0-9 -> 00-09"""
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out = []
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for ch in mac:
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if ch.isdigit():
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out.append(f"{int(ch):02d}")
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else:
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out.append(f"{ord(ch) - ord('A') + 1:02d}")
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return "".join(out)
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def generate_lic(mac: str) -> str:
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"""生成 LIC 文件内容（倒序）"""
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norm = normalize_mac(mac)
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code = mac_to_code(norm)
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return code[::-1]
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