poet_enclave_simulator.py 文件源码

def initialize(cls, config_dir, data_dir):
        # See if our configuration file exists.  If so, then we are going to
        # see if there is a configuration value for the validator ID.  If so,
        # then we'll use that when constructing the simulated anti-Sybil ID.
        # Otherwise, we are going to fall back on trying to create one that is
        # unique.
        validator_id = datetime.datetime.now().isoformat()

        config_file = os.path.join(config_dir, 'poet_enclave_simulator.toml')
        if os.path.exists(config_file):
            LOGGER.info(
                'Loading PoET enclave simulator config from : %s',
                config_file)

            try:
                with open(config_file) as fd:
                    toml_config = toml.loads(fd.read())
            except IOError as e:
                LOGGER.info(
                    'Error loading PoET enclave simulator configuration: %s',
                    e)
                LOGGER.info('Continuing with default configuration')

            invalid_keys = set(toml_config.keys()).difference(['validator_id'])
            if invalid_keys:
                LOGGER.warning(
                    'Ignoring invalid keys in PoET enclave simulator config: '
                    '%s',
                    ', '.join(sorted(list(invalid_keys))))

            validator_id = toml_config.get('validator_id', validator_id)

        LOGGER.debug(
            'PoET enclave simulator creating anti-Sybil ID from: %s',
            validator_id)

        # Create an anti-Sybil ID that is unique for this validator
        cls._anti_sybil_id = hashlib.sha256(validator_id.encode()).hexdigest()