root / kamaki / clients / __init__.py @ df79206f
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# Copyright 2011 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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import json |
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import logging |
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import requests |
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from requests.auth import AuthBase |
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sendlog = logging.getLogger('clients.send')
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recvlog = logging.getLogger('clients.recv')
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# Add a convenience json property to the responses
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def _json(self): |
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try:
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return json.loads(self.content) |
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except ValueError: |
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raise ClientError("Invalid JSON reply", self.status_code) |
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requests.Response.json = property(_json)
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# Add a convenience status property to the responses
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def _status(self): |
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return requests.status_codes._codes[self.status_code][0].upper() |
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requests.Response.status = property(_status)
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class XAuthTokenAuth(AuthBase): |
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def __init__(self, token): |
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self.token = token
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def __call__(self, r): |
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r.headers['X-Auth-Token'] = self.token |
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return r
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class ClientError(Exception): |
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def __init__(self, message, status=0, details=''): |
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self.message = message
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self.status = status
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self.details = details
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class Client(object): |
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def __init__(self, base_url, token, include=False, verbose=False): |
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self.base_url = base_url
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self.auth = XAuthTokenAuth(token)
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self.include = include
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self.verbose = verbose
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def raise_for_status(self, r): |
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if 400 <= r.status_code < 500: |
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message, sep, details = r.text.partition('\n')
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elif 500 <= r.status_code < 600: |
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message = '%d Server Error' % (r.status_code,)
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details = r.text |
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else:
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message = '%d Unknown Error' % (r.status_code,)
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details = r.text |
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message = message or "HTTP Error %d" % (r.status_code,) |
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raise ClientError(message, r.status_code, details)
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def request(self, method, path, **kwargs): |
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raw = kwargs.pop('raw', False) |
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success = kwargs.pop('success', 200) |
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if 'json' in kwargs: |
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data = json.dumps(kwargs.pop('json'))
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kwargs['data'] = data
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headers = kwargs.setdefault('headers', {})
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headers['content-type'] = 'application/json' |
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url = self.base_url + path
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kwargs.setdefault('auth', self.auth) |
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r = requests.request(method, url, **kwargs) |
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req = r.request |
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sendlog.info('%s %s', req.method, req.url)
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for key, val in req.headers.items(): |
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sendlog.info('%s: %s', key, val)
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sendlog.info('')
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if req.data:
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sendlog.info('%s', req.data)
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recvlog.info('%d %s', r.status_code, r.status)
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for key, val in r.headers.items(): |
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recvlog.info('%s: %s', key, val)
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recvlog.info('')
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if not raw and r.text: |
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recvlog.debug(r.text) |
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if success is not None: |
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# Success can either be an in or a collection
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success = (success,) if isinstance(success, int) else success |
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if r.status_code not in success: |
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self.raise_for_status(r)
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return r
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def delete(self, path, **kwargs): |
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return self.request('delete', path, **kwargs) |
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def get(self, path, **kwargs): |
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return self.request('get', path, **kwargs) |
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def head(self, path, **kwargs): |
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return self.request('head', path, **kwargs) |
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def post(self, path, **kwargs): |
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return self.request('post', path, **kwargs) |
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def put(self, path, **kwargs): |
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return self.request('put', path, **kwargs) |
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from .compute import ComputeClient as compute |
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from .image import ImageClient as image |
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from .storage import StorageClient as storage |
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from .cyclades import CycladesClient as cyclades |
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from .pithos import PithosClient as pithos |