Source code for

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# this work for additional information regarding copyright ownership.
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import hmac
import time
import hashlib

from libcloud.utils.py3 import httplib, urlencode
from libcloud.common.base import JsonResponse, ConnectionUserAndKey
from libcloud.common.types import LibcloudError, InvalidCredsError
from import Container, StorageDriver

    import simplejson as json
except ImportError:
    import json  # type: ignore  # noqa: F401

[docs]class NimbusResponse(JsonResponse): valid_response_codes = [ httplib.OK, httplib.NOT_FOUND, httplib.CONFLICT, httplib.BAD_REQUEST, ]
[docs] def success(self): return self.status in self.valid_response_codes
[docs] def parse_error(self): if self.status in [httplib.UNAUTHORIZED]: raise InvalidCredsError(self.body) raise LibcloudError( "Unknown error. Status code: %d" % (self.status), driver=self.connection.driver, )
[docs]class NimbusConnection(ConnectionUserAndKey): host = "" responseCls = NimbusResponse def __init__(self, *args, **kwargs): = kwargs.pop("id") super().__init__(*args, **kwargs)
[docs] def pre_connect_hook(self, params, headers): timestamp = str(int(time.time())) signature = self._calculate_signature( user_id=self.user_id, method=self.method, params=params, path=self.action, timestamp=timestamp, key=self.key, ) headers["X-NIMBUS-IO-Timestamp"] = timestamp headers["Authorization"] = "NIMBUS.IO {}:{}".format(, signature) return params, headers
def _calculate_signature(self, user_id, method, params, path, timestamp, key): if params: uri_path = path + "?" + urlencode(params) else: uri_path = path string_to_sign = [user_id, method, str(timestamp), uri_path] string_to_sign = "\n".join(string_to_sign) hmac_value =, string_to_sign, hashlib.sha256) return hmac_value.hexdigest()
[docs]class NimbusStorageDriver(StorageDriver): name = "" website = "" connectionCls = NimbusConnection def __init__(self, *args, **kwargs): self.user_id = kwargs["user_id"] super().__init__(*args, **kwargs)
[docs] def iterate_containers(self): response = self.connection.request("/customers/%s/collections" % (self.user_id)) return self._to_containers(response.object)
[docs] def create_container(self, container_name): params = {"action": "create", "name": container_name} response = self.connection.request( "/customers/%s/collections" % (self.user_id), params=params, method="POST" ) return self._to_container(response.object)
def _to_containers(self, data): for item in data: yield self._to_container(item) def _to_container(self, data): name = data[0] extra = {"date_created": data[2]} return Container(name=name, extra=extra, driver=self) def _ex_connection_class_kwargs(self): result = {"id": self.user_id} return result