strack.py 文件源码

def get_unique_code():
        # get code from env
        code_from_env = os.environ.get("STRACK_UNIQUE_CODE")
        if code_from_env:
            return code_from_env
        # read code from cache
        unique_code_cache_file = os.path.join(STRACK_USER_PATH, "unique")
        if os.path.isfile(unique_code_cache_file):
            with open(unique_code_cache_file) as f:
                code_from_file = f.read()
            os.environ.update({"STRACK_UNIQUE_CODE": code_from_file})
            return code_from_file
        # make dir
        if not os.path.isdir(STRACK_USER_PATH):
            os.makedirs(STRACK_USER_PATH)
        # generate the code
        computer_name = socket.getfqdn(socket.gethostname())
        ip = socket.gethostbyname(computer_name)
        unique_code = md5(ip).hexdigest()
        # save cache
        os.environ.update({"STRACK_UNIQUE_CODE": unique_code})
        with open(unique_code_cache_file, "w") as f:
            f.write(unique_code)
        return unique_code