def _do_request(self, method, url, body, headers): """ Connects to the server and issues a request. Handles converting any returned HTTP error status codes to OpenStack/heat exceptions and closing the server connection. Returns the result data, or raises an appropriate exception. :param method: HTTP method ("GET", "POST", "PUT", etc...) :param url: urlparse.ParsedResult object with URL information :param body: data to send (as string, filelike or iterable), or None (default) :param headers: mapping of key/value pairs to add as headers :note If the body param has a read attribute, and method is either POST or PUT, this method will automatically conduct a chunked-transfer encoding and use the body as a file object or iterable, transferring chunks of data using the connection's send() method. This allows large objects to be transferred efficiently without buffering the entire body in memory. """ if url.query: path = url.path + "?" + url.query else: path = url.path try: connection_type = self.get_connection_type() headers = headers or {} if 'x-auth-token' not in headers and self.auth_tok: headers['x-auth-token'] = self.auth_tok c = connection_type(url.hostname, url.port, **self.connect_kwargs) def _pushing(method): return method.lower() in ('post', 'put') def _simple(body): return body is None or isinstance(body, basestring) def _filelike(body): return hasattr(body, 'read') def _sendbody(connection, iter): connection.endheaders() for sent in iter: # iterator has done the heavy lifting pass def _chunkbody(connection, iter): connection.putheader('Transfer-Encoding', 'chunked') connection.endheaders() for chunk in iter: connection.send('%x\r\n%s\r\n' % (len(chunk), chunk)) connection.send('0\r\n\r\n') # Do a simple request or a chunked request, depending # on whether the body param is file-like or iterable and # the method is PUT or POST # if not _pushing(method) or _simple(body): # Simple request... c.request(method, path, body, headers) elif _filelike(body) or self._iterable(body): c.putrequest(method, path) for header, value in headers.items(): c.putheader(header, value) iter = self.image_iterator(c, headers, body) _chunkbody(c, iter) else: raise TypeError('Unsupported image type: %s' % body.__class__) res = c.getresponse() def _retry(res): return res.getheader('Retry-After') status_code = self.get_status_code(res) if status_code in self.OK_RESPONSE_CODES: return res elif status_code in self.REDIRECT_RESPONSE_CODES: raise exception.RedirectException(res.getheader('Location')) elif status_code == httplib.UNAUTHORIZED: raise exception.NotAuthorized() elif status_code == httplib.FORBIDDEN: raise exception.NotAuthorized() elif status_code == httplib.NOT_FOUND: raise exception.NotFound(res.read()) elif status_code == httplib.CONFLICT: raise exception.Duplicate(res.read()) elif status_code == httplib.BAD_REQUEST: raise exception.Invalid(reason=res.read()) elif status_code == httplib.MULTIPLE_CHOICES: raise exception.MultipleChoices(body=res.read()) elif status_code == httplib.REQUEST_ENTITY_TOO_LARGE: raise exception.LimitExceeded(retry=_retry(res), body=res.read()) elif status_code == httplib.INTERNAL_SERVER_ERROR: raise Exception("Internal Server error: %s" % res.read()) elif status_code == httplib.SERVICE_UNAVAILABLE: raise exception.ServiceUnavailable(retry=_retry(res)) elif status_code == httplib.REQUEST_URI_TOO_LONG: raise exception.RequestUriTooLong(body=res.read()) else: raise Exception("Unknown error occurred! %s" % res.read()) except (socket.error, IOError), e: raise exception.ClientConnectionError(e)
def _v2_auth(self, token_url): def get_endpoint(service_catalog): """ Select an endpoint from the service catalog We search the full service catalog for services matching both type and region. If the client supplied no region then any endpoint for the service is considered a match. There must be one -- and only one -- successful match in the catalog, otherwise we will raise an exception. """ region = self.creds.get('region') service_type_matches = lambda s: s.get('type') == self.service_type region_matches = lambda e: region is None or e['region'] == region endpoints = [ ep for s in service_catalog if service_type_matches(s) for ep in s['endpoints'] if region_matches(ep) ] if len(endpoints) > 1: raise exception.RegionAmbiguity(region=region) elif not endpoints: raise exception.NoServiceEndpoint() else: # FIXME(sirp): for now just use the public url. return endpoints[0]['publicURL'] creds = self.creds creds = { "auth": { "tenantName": creds['tenant'], "passwordCredentials": { "username": creds['username'], "password": creds['password'] } } } headers = {} headers['Content-Type'] = 'application/json' req_body = json.dumps(creds) resp, resp_body = self._do_request(token_url, 'POST', headers=headers, body=req_body) if resp.status == 200: resp_auth = json.loads(resp_body)['access'] self.management_url = get_endpoint(resp_auth['serviceCatalog']) self.auth_token = resp_auth['token']['id'] elif resp.status == 305: raise exception.RedirectException(resp['location']) elif resp.status == 400: raise exception.AuthBadRequest(url=token_url) elif resp.status == 401: raise exception.NotAuthorized() elif resp.status == 404: raise exception.AuthUrlNotFound(url=token_url) else: try: body = json.loads(resp_body) msg = body['error']['message'] except: msg = resp_body raise exception.KeystoneError(resp.status, msg)