A set of Neutron drivers for the VMware NSX.
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# Copyright 2013 VMware, Inc
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
# http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import base64
import eventlet
from oslo_serialization import jsonutils
import six
from vmware_nsx.plugins.nsx_v.vshield.common import exceptions
httplib2 = eventlet.import_patched('httplib2')
def _xmldump(obj):
"""Sort of improved xml creation method.
This converts the dict to xml with following assumptions:
Keys starting with _(underscore) are to be used as attributes and not
element keys starting with @ so that dict can be made.
The keys are not part of any xml schema.
config = ""
attr = ""
if isinstance(obj, dict):
for key, value in six.iteritems(obj):
if (key.startswith('_')):
attr += ' %s="%s"' % (key[1:], value)
a, x = _xmldump(value)
if (key.startswith('@')):
cfg = "%s" % (x)
cfg = "<%s%s>%s</%s>" % (key, a, x, key)
config += cfg
elif isinstance(obj, list):
for value in obj:
a, x = _xmldump(value)
attr += a
config += x
config = obj
return attr, config
def xmldumps(obj):
attr, xml = _xmldump(obj)
return xml
class VcnsApiHelper(object):
errors = {
303: exceptions.ResourceRedirect,
400: exceptions.RequestBad,
403: exceptions.Forbidden,
404: exceptions.ResourceNotFound,
409: exceptions.ServiceConflict,
415: exceptions.MediaTypeUnsupport,
503: exceptions.ServiceUnavailable
def __init__(self, address, user, password, format='json', ca_file=None,
self.authToken = base64.encodestring(six.b("%s:%s" % (user, password)))
self.user = user
self.passwd = password
self.address = address
self.format = format
if format == 'json':
self.encode = jsonutils.dumps
self.encode = xmldumps
self.ca_file = ca_file
self.insecure = insecure
def request(self, method, uri, params=None, headers=None,
uri = self.address + uri
http = httplib2.Http()
if self.ca_file is not None:
http.ca_certs = self.ca_file
http.disable_ssl_certificate_validation = False
http.disable_ssl_certificate_validation = self.insecure
if headers is None:
headers = {}
headers['Content-Type'] = 'application/' + self.format
headers['Accept'] = 'application/' + self.format,
headers['Authorization'] = 'Basic ' + self.authToken
if encodeparams is True:
body = self.encode(params) if params else None
body = params if params else None
header, response = http.request(uri, method,
body=body, headers=headers)
status = int(header['status'])
if 200 <= status < 300:
return header, response
if status in self.errors:
cls = self.errors[status]
cls = exceptions.VcnsApiException
raise cls(uri=uri, status=status, header=header, response=response)