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# Copyright 2022-2023 ETSI TeraFlowSDN - TFS OSG (https://tfs.etsi.org/)
#
# 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.
# Mock IPM controller (implements minimal support)
import functools, json, logging, sys, time, uuid
from flask import Flask, jsonify, make_response, request
from flask_restful import Api, Resource
BIND_ADDRESS = '0.0.0.0'
BIND_PORT = 8444
IPM_USERNAME = 'xr-user-1'
IPM_PASSWORD = 'xr-user-1'
STR_ENDPOINT = 'https://{:s}:{:s}'.format(str(BIND_ADDRESS), str(BIND_PORT))
LOG_LEVEL = logging.DEBUG
CONSTELLATION = {
'id': 'ofc-constellation',
'hubModule': {'state': {
'module': {'moduleName': 'OFC HUB 1', 'trafficMode': 'L1Mode'},
'endpoints': [{'moduleIf': {'clientIfAid': 'XR-T1'}}, {'moduleIf': {'clientIfAid': 'XR-T4'}}]
}},
'leafModules': [
{'state': {
'module': {'moduleName': 'OFC LEAF 1', 'trafficMode': 'L1Mode'},
'endpoints': [{'moduleIf': {'clientIfAid': 'XR-T1'}}]
}},
{'state': {
'module': {'moduleName': 'OFC LEAF 2', 'trafficMode': 'L1Mode'},
'endpoints': [{'moduleIf': {'clientIfAid': 'XR-T1'}}]
}}
]
}
logging.basicConfig(level=LOG_LEVEL, format="[%(asctime)s] %(levelname)s:%(name)s:%(message)s")
LOGGER = logging.getLogger(__name__)
logging.getLogger('werkzeug').setLevel(logging.WARNING)
def log_request(logger : logging.Logger, response):
timestamp = time.strftime('[%Y-%b-%d %H:%M]')
logger.info('%s %s %s %s %s', timestamp, request.remote_addr, request.method, request.full_path, response.status)
return response
#class Health(Resource):
# def get(self):
# return make_response(jsonify({}), 200)
class OpenIdConnect(Resource):
ACCESS_TOKENS = {}
def post(self):
if request.content_type != 'application/x-www-form-urlencoded': return make_response('bad content type', 400)
if request.content_length == 0: return make_response('bad content length', 400)
form_request = request.form
if form_request.get('client_id') != 'xr-web-client': return make_response('bad client_id', 403)
if form_request.get('client_secret') != 'xr-web-client': return make_response('bad client_secret', 403)
if form_request.get('grant_type') != 'password': return make_response('bad grant_type', 403)
if form_request.get('username') != IPM_USERNAME: return make_response('bad username', 403)
if form_request.get('password') != IPM_PASSWORD: return make_response('bad password', 403)
access_token = OpenIdConnect.ACCESS_TOKENS.setdefault(IPM_USERNAME, uuid.uuid4())
reply = {'access_token': access_token, 'expires_in': 86400}
return make_response(jsonify(reply), 200)
class XrNetworks(Resource):
def get(self):
print(str(request.args))
content = request.args.get('content')
print('content', content)
query = json.loads(request.args.get('q'))
hub_module_name = query.get('hubModule.state.module.moduleName')
if hub_module_name != 'OFC HUB 1': return make_response('unexpected hub module', 404)
print('query', query)
return make_response(jsonify([CONSTELLATION]), 200)
#class Services(Resource):
# def get(self):
# services = [service for service in NETWORK_SERVICES.values()]
# return make_response(jsonify({'ietf-eth-tran-service:etht-svc': {'etht-svc-instances': services}}), 200)
#
# def post(self):
# json_request = request.get_json()
# if not json_request: abort(400)
# if not isinstance(json_request, dict): abort(400)
# if 'etht-svc-instances' not in json_request: abort(400)
# json_services = json_request['etht-svc-instances']
# if not isinstance(json_services, list): abort(400)
# if len(json_services) != 1: abort(400)
# svc_data = json_services[0]
# etht_svc_name = svc_data['etht-svc-name']
# NETWORK_SERVICES[etht_svc_name] = svc_data
# return make_response(jsonify({}), 201)
#class DelServices(Resource):
# def delete(self, service_uuid : str):
# NETWORK_SERVICES.pop(service_uuid, None)
# return make_response(jsonify({}), 204)
def main():
LOGGER.info('Starting...')
app = Flask(__name__)
app.after_request(functools.partial(log_request, LOGGER))
api = Api(app)
#api.add_resource(Health, '/ietf-network:networks')
api.add_resource(OpenIdConnect, '/realms/xr-cm/protocol/openid-connect/token')
api.add_resource(XrNetworks, '/api/v1/xr-networks')
#api.add_resource(Network, '/ietf-network:networks/network=<string:network_uuid>')
#api.add_resource(Services, '/ietf-eth-tran-service:etht-svc')
#api.add_resource(DelServices, '/ietf-eth-tran-service:etht-svc/etht-svc-instances=<string:service_uuid>')
LOGGER.info('Listening on {:s}...'.format(str(STR_ENDPOINT)))
app.run(debug=True, host=BIND_ADDRESS, port=BIND_PORT, ssl_context='adhoc')
LOGGER.info('Bye')
return 0
if __name__ == '__main__':
sys.exit(main())