92 lines
2.9 KiB
Python
92 lines
2.9 KiB
Python
"""
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Copyright 2013 Rackspace, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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import json
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import requests
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from teeth_rest import encoding
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from teeth_agent import errors
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class APIClient(object):
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api_version = 'v1'
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def __init__(self, api_url):
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self.api_url = api_url.rstrip('/')
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self.session = requests.Session()
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self.encoder = encoding.RESTJSONEncoder(
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encoding.SerializationViews.PUBLIC)
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def _request(self, method, path, data=None):
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request_url = '{api_url}{path}'.format(api_url=self.api_url, path=path)
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if data is not None:
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data = self.encoder.encode(data)
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request_headers = {
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'Content-Type': 'application/json',
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'Accept': 'application/json',
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}
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return self.session.request(method,
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request_url,
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headers=request_headers,
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data=data)
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def heartbeat(self, mac_addr, url, mode, version):
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path = '/{api_version}/agents/{mac_addr}'.format(
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api_version=self.api_version,
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mac_addr=mac_addr)
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data = {
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'url': url,
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'mode': mode,
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'version': version,
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}
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try:
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response = self._request('PUT', path, data=data)
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except Exception as e:
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raise errors.HeartbeatError(str(e))
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if response.status_code != requests.codes.NO_CONTENT:
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msg = 'Invalid status code: {}'.format(response.status_code)
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raise errors.HeartbeatError(msg)
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try:
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return float(response.headers['Heartbeat-Before'])
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except KeyError:
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raise errors.HeartbeatError('Missing Heartbeat-Before header')
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except Exception:
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raise errors.HeartbeatError('Invalid Heartbeat-Before header')
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def get_configuration(self, mac_addr):
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path = '/{api_version}/agents/{mac_addr}/configuration'.format(
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api_version=self.api_version,
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mac_addr=mac_addr)
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response = self._request('GET', path)
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if response.status_code != requests.codes.OK:
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msg = 'Invalid status code: {}'.format(response.status_code)
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raise errors.OverlordAPIError(msg)
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try:
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return json.loads(response.content)
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except Exception as e:
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raise errors.OverlordAPIError('Error decoding response: ' + str(e))
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