Remove controller stuff, tidy code based on pylint suggestions

lib/tfw/networking/server/__init__.py

@@ -3,4 +3,3 @@
 
 from .event_handler_connector import EventHandlerConnector, EventHandlerUplinkConnector, EventHandlerDownlinkConnector
 from .tfw_server import TFWServer
-# from .controller_responder import ControllerResponder  # TODO: readd once controller stuff is resolved

lib/tfw/networking/server/controller_responder.py

@@ -1,38 +0,0 @@
-# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
-# All Rights Reserved. See LICENSE file for details.
-
-from tfw.networking import deserialize_all, serialize_all, ControllerConnector
-
-
-class ControllerResponder:
-    def __init__(self, fsm):
-        self.fsm = fsm
-        self.token = None
-        self.controller_connector = ControllerConnector()
-        self.controller_connector.register_callback(self.handle_controller_request)
-        self.controller_request_handlers = {
-            'solution_check': self.handle_solution_check_request,
-            'test': self.handle_test_request,
-            'token': self.handle_token_request
-        }
-
-    def handle_controller_request(self, stream, msg_parts):
-        key, data = deserialize_all(*msg_parts)
-        response = self.controller_request_handlers[key](data)
-        stream.send_multipart(serialize_all(self.token, response))
-
-    def handle_test_request(self, data):
-        # pylint: disable=unused-argument,no-self-use
-        return 'OK'
-
-    def handle_token_request(self, data):
-        if self.token is None:
-            self.token = data
-        return {'token': self.token}
-
-    def handle_solution_check_request(self, data):
-        # pylint: disable=unused-argument
-        return {
-            'solved': self.fsm.is_solved(),
-            'message': 'solved' if self.fsm.is_solved() else 'not solved'
-        }

lib/tfw/networking/server/tfw_server.py

@@ -25,12 +25,11 @@ class TFWServer:
         self._uplink_connector = ServerUplinkConnector()
 
         self.application = Application([(
-            r'/ws', ZMQWebSocketProxy,{
+            r'/ws', ZMQWebSocketProxy, {
                 'event_handler_connector': self._event_handler_connector,
                 'message_handlers': [self.handle_trigger, self.handle_recover],
                 'frontend_message_handlers': [self.save_frontend_messages]
-            })]
-        )
+            })])
 
         self._frontend_messages = FrontendMessageStorage()
 
@@ -68,7 +67,7 @@ class MessageStorage(ABC):
     def filter_message(self, message):
         raise NotImplementedError
 
-    def transform_message(self, message):
+    def transform_message(self, message):   # pylint: disable=no-self-use
         yield message
 
 

lib/tfw/networking/server/zmq_websocket_proxy.py

@@ -12,6 +12,7 @@ LOG = logging.getLogger(__name__)
 
 
 class ZMQWebSocketProxy(WebSocketHandler):
+    # pylint: disable=abstract-method
     instances = set()
 
     def initialize(self, **kwargs): # pylint: disable=arguments-differ
@@ -83,6 +84,7 @@ class ZMQWebSocketProxy(WebSocketHandler):
 
 
 class TFWProxy:
+    # pylint: disable=protected-access
     def __init__(self, to_source, to_destination):
         self.to_source = to_source
         self.to_destination = to_destination