98 lines
3.7 KiB
Python
98 lines
3.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 PLUMgrid, Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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# @author: Edgar Magana, emagana@plumgrid.com, PLUMgrid, Inc.
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# @author: Brenden Blanco, bblanco@plumgrid.com, PLUMgrid, Inc.
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"""
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Neutron PLUMgrid Plug-in for PLUMgrid Virtual Technology
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This plugin will forward authenticated REST API calls
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to the Network Operating System by PLUMgrid called NOS
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"""
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import httplib
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import urllib2
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from neutron.openstack.common import jsonutils as json
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from neutron.openstack.common import log as logging
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from neutron.plugins.plumgrid.common import exceptions as plum_excep
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LOG = logging.getLogger(__name__)
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class RestConnection(object):
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"""REST Connection to PLUMgrid NOS Server."""
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def __init__(self, server, port, timeout):
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LOG.debug(_('NeutronPluginPLUMgrid Status: REST Connection Started'))
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self.server = server
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self.port = port
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self.timeout = timeout
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def nos_rest_conn(self, nos_url, action, data, headers):
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self.nos_url = nos_url
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body_data = json.dumps(data)
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if not headers:
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headers = {}
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headers['Content-type'] = 'application/json'
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headers['Accept'] = 'application/json'
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LOG.debug(_("PLUMgrid_NOS_Server: %(server)s %(port)s %(action)s"),
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dict(server=self.server, port=self.port, action=action))
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conn = httplib.HTTPConnection(self.server, self.port,
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timeout=self.timeout)
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if conn is None:
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LOG.error(_('PLUMgrid_NOS_Server: Could not establish HTTP '
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'connection'))
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return
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try:
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LOG.debug(_("PLUMgrid_NOS_Server Sending Data: %(nos_url)s "
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"%(body_data)s %(headers)s"),
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dict(
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nos_url=nos_url,
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body_data=body_data,
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headers=headers,
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))
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conn.request(action, nos_url, body_data, headers)
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resp = conn.getresponse()
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resp_str = resp.read()
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LOG.debug(_("PLUMgrid_NOS_Server Connection Data: %(resp)s, "
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"%(resp_str)s"), dict(resp=resp, resp_str=resp_str))
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if resp.status is httplib.OK:
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try:
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respdata = json.loads(resp_str)
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LOG.debug(_("PLUMgrid_NOS_Server Connection RESP: %s"),
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respdata)
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pass
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except ValueError:
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err_message = _("PLUMgrid HTTP Connection Failed: ")
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LOG.Exception(err_message)
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raise plum_excep.PLUMgridException(err_msg=err_message)
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ret = (resp.status, resp.reason, resp_str)
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except urllib2.HTTPError:
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LOG.error(_('PLUMgrid_NOS_Server: %(action)s failure, %(e)r'))
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ret = 0, None, None, None
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conn.close()
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LOG.debug(_("PLUMgrid_NOS_Server: status=%(status)d, "
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"reason=%(reason)r, ret=%(ret)s"),
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{'status': ret[0], 'reason': ret[1], 'ret': ret[2]})
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return ret
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