Source code for

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# this work for additional information regarding copyright ownership.
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# (the "License"); you may not use this file except in compliance with
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import time
import hashlib
import hmac

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

from libcloud.utils.py3 import httplib
from libcloud.utils.py3 import urlencode

from libcloud.common.base import ConnectionUserAndKey, JsonResponse
from libcloud.common.types import InvalidCredsError, LibcloudError
from import Container, StorageDriver

[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(NimbusConnection, self).__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 %s:%s' % (, 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(NimbusStorageDriver, self).__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