class StartServiceLinking(Resource):
def __init__(self):
super(StartServiceLinking, self).__init__()
self.helpers = Helpers(current_app.config)
self.service_key = self.helpers.get_key()
self.is_sink = current_app.config["IS_SINK"]
self.is_source = current_app.config["IS_SOURCE"]
self.service_url = current_app.config["SERVICE_URL"]
self.operator_url = current_app.config["OPERATOR_URL"]
self.lock_wait_time = current_app.config["LOCK_WAIT_TIME"]
self.parser = reqparse.RequestParser()
self.parser.add_argument('code', type=str, help='session code')
self.parser.add_argument('operator_id', type=str, help='Operator UUID.')
self.parser.add_argument('return_url', type=str, help='Url safe Base64 coded return url.')
self.parser.add_argument('surrogate_id', type=str, help="surrogate ID")
# TODO: Verify service_id is unnecessary.
#self.parser.add_argument('service_id', type=str, help="Service's ID") # Seems unnecessary to the flow.
@error_handler
@api_logging
def post(self):
args = self.parser.parse_args()
debug_log.debug("StartServiceLinking got parameter:\n {}".format(args))
data = {"surrogate_id": args["surrogate_id"], "code": args["code"]}
sq.task("Link code to generated surrogate_id")
self.helpers.add_code_to_surrogate_id(args["code"], args["surrogate_id"])
if self.is_sink:
data["token_key"] = self.service_key["pub"] # TODO: Are we implementing according to 1.3 in such way that we have
# operator, service, user specific pop keys?
sq.send_to("Operator_Components Mgmnt", "Send Operator_Components request to make SLR")
endpoint = "/api/1.3/slr/link" # Todo: this needs to be fetched from somewhere
result = post("{}{}".format(self.operator_url, endpoint), json=data)
debug_log.info("####slr/link reply from operator: {}\n{}".format(result.status_code, result.text))
if result.ok:
self.helpers.delete_session(args["code"])
return result.text, 201
elif result.status_code == 500:
self.helpers.delete_session(args["code"])
raise DetailedHTTPException(status=500,
detail={"msg": "Linking Service has failed due to server side issue."},
title="Could not link Service.")
else:
self.helpers.delete_session(args["code"])
raise DetailedHTTPException(status=result.status_code,
detail={
"msg": "Something went wrong while posting to Operator_SLR for /link",
"Error from Operator_SLR": loads(result.text)},
title=result.reason)
class GenerateSurrogateId(Resource):
def __init__(self):
super(GenerateSurrogateId, self).__init__()
keysize = current_app.config["KEYSIZE"]
cert_key_path = current_app.config["CERT_KEY_PATH"]
self.helpers = Helpers(current_app.config)
self.service_key = self.helpers.get_key()
self.is_sink = current_app.config["IS_SINK"]
self.is_source = current_app.config["IS_SOURCE"]
self.service_id = current_app.config["SERVICE_ID"]
self.service_url = current_app.config["SERVICE_URL"]
self.operator_url = current_app.config["OPERATOR_URL"]
self.lock_wait_time = current_app.config["LOCK_WAIT_TIME"]
@timeme
@error_handler
@api_logging
def post(self):
try:
# TODO: Verify this requests comes from Service Mockup(Is this our responsibility?)
# This is now the point we want to double check that similar flow is not going on already for said user.
user_id = request.json["user_id"]
operator_id = request.json["operator_id"]
sq.task("Checking if user_id is locked already.")
user_is_locked = self.helpers.check_lock(user_id)
if user_is_locked:
time.sleep(self.lock_wait_time)
user_is_locked = self.helpers.check_lock(user_id)
if user_is_locked:
raise DetailedHTTPException(status=503,
detail={"msg": "Another SLR linking is in process, please try again once "
"linking is over"},
title="User_id locked for SLR creation.")
else:
sq.task("Locking user_id.")
self.helpers.lock_user(user_id)
sq.task("Generate surrogate_id.")
# TODO: Some logic to surrogate_id's?
# surrogate_id is meant to be unique between operator and service.
surrogate_id = sha256("{}_{}_{}".format(self.service_id, user_id, operator_id)).hexdigest()
# Store surrogate_id to database
self.helpers.add_surrogate_id_to_user_id(user_id, surrogate_id)
sq.send_to("Service_Mockup", "Send surrogate_id to Service_Mockup")
content_json = {"surrogate_id": surrogate_id}
return content_json, 201
except DetailedHTTPException as e:
debug_log.exception(e)
self.helpers.delete_session(user=user_id)
e.trace = traceback.format_exc(limit=100).splitlines()
raise e
except Exception as e:
debug_log.exception(e)
self.helpers.delete_session(user=user_id)
raise DetailedHTTPException(exception=e,
detail="Something failed in generating and delivering Surrogate_ID.",
trace=traceback.format_exc(limit=100).splitlines())
