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# Copyright 2022-2025 ETSI SDG TeraFlowSDN (TFS) (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 IETF ACTN SDN controller
# -----------------------------
# REST server implementing minimal support for:
# - IETF YANG Data Model for Transport Network Client Signals
# Ref: https://www.ietf.org/archive/id/draft-ietf-ccamp-client-signal-yang-10.html
# - IETF YANG Data Model for Traffic Engineering Tunnels, Label Switched Paths and Interfaces
# Ref: https://www.ietf.org/archive/id/draft-ietf-teas-yang-te-34.html
import functools, logging, sys, time
from flask import Flask, jsonify, make_response, request
from flask_restful import Api, Resource
from ResourceApps import Apps, App
from ResourceAppFlows import AppFlows, AppFlow
BIND_ADDRESS = "0.0.0.0"
BIND_PORT = 8443
BASE_URL = "/restconf/v1/data/app-flows"
STR_ENDPOINT = "http://{:s}:{:s}{:s}".format(
str(BIND_ADDRESS), str(BIND_PORT), str(BASE_URL)
)
LOG_LEVEL = logging.DEBUG
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)
def main():
LOGGER.info("Starting...")
app = Flask(__name__)
app.after_request(functools.partial(log_request, LOGGER))
api = Api(app, prefix=BASE_URL)
api.add_resource(Health, "/")
api.add_resource(Apps, BASE_URL + "/apps")
api.add_resource(App, BASE_URL + "/application=<string:app_name>")
api.add_resource(AppFlows, BASE_URL)
api.add_resource(AppFlow, BASE_URL + "/app-flow=<string:app_name>")
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())