webroot.py 文件源码

def _perform_single(self, achall):
        response, validation = achall.response_and_validation()

        root_path = self.full_roots[achall.domain]
        validation_path = self._get_validation_path(root_path, achall)
        logger.debug("Attempting to save validation to %s", validation_path)

        # Change permissions to be world-readable, owner-writable (GH #1795)
        old_umask = os.umask(0o022)

        try:
            with open(validation_path, "wb") as validation_file:
                validation_file.write(validation.encode())
        finally:
            os.umask(old_umask)

        self.performed[root_path].add(achall)

        return response