validator.py 文件源码

def certificate(self, cert, name, alt_host=None, port=443):
        """Verifies the certificate presented at name is cert"""
        if alt_host is None:
            host = socket.gethostbyname(name)
        elif isinstance(alt_host, six.binary_type):
            host = alt_host
        else:
            host = alt_host.encode()
        name = name if isinstance(name, six.binary_type) else name.encode()

        try:
            presented_cert = crypto_util.probe_sni(name, host, port)
        except acme_errors.Error as error:
            logger.exception(error)
            return False

        return presented_cert.digest("sha256") == cert.digest("sha256")