diff --git a/lib/tfw/networking/server/tfw_server.py b/lib/tfw/networking/server/tfw_server.py
new file mode 100644
index 0000000..fbd5ec3
--- /dev/null
+++ b/lib/tfw/networking/server/tfw_server.py
@@ -0,0 +1,33 @@
+from tornado.web import Application
+
+from tfw.networking.controller_connector import ControllerConnector
+from tfw.networking.serialization import deserialize_all, serialize_all
+from tfw.networking.server.zmq_websocket_handler import FSMManagingSocketHandler
+
+
+class TFWServer:
+    def __init__(self, fsm_type):
+        self._fsm = fsm_type()
+        self.application = Application(
+            [(r'/ws', FSMManagingSocketHandler, {'fsm': self.fsm})],
+            autoreload=True
+        )
+        self.controller_connector = ControllerConnector()
+        self.controller_connector.register_callback(self.zmq_callback)
+
+    @property
+    def fsm(self):
+        return self._fsm
+
+    def zmq_callback(self, stream, msg_parts):
+        key, data = deserialize_all(*msg_parts)
+        if key == 'test':
+            stream.send_multipart(serialize_all(key, 'OK'))
+        if key == 'solution_check':
+            stream.send_multipart(serialize_all(key, {
+                'solved': self.fsm.is_solved(),
+                'message': 'solved' if self.fsm.is_solved() else 'not solved'
+            }))
+
+    def listen(self, port):
+        self.application.listen(port)
diff --git a/src/app/app.py b/src/app/app.py
index 3435903..de73eee 100644
--- a/src/app/app.py
+++ b/src/app/app.py
@@ -1,45 +1,13 @@
 import sys
 import tornado
 import zmq
-from tornado.web import Application
 from tornado.ioloop import IOLoop
 
 from sql_injection_fsm import SQLInjectionFSM
+from tfw.networking.server.tfw_server import TFWServer
 from tfw.config import tfwenv
 from tfw.config.logs import logging
-from tfw.networking.controller_connector import ControllerConnector
-from tfw.networking.serialization import deserialize_all, serialize_all
-
 log = logging.getLogger(__name__)
-from tfw.networking.server.zmq_websocket_handler import FSMManagingSocketHandler
-
-
-class TFWServer:
-    def __init__(self, fsm_type):
-        self._fsm = fsm_type()
-        self.application = Application(
-            [(r'/ws', FSMManagingSocketHandler, {'fsm': self.fsm})],
-            autoreload=True
-        )
-        self.controller_connector = ControllerConnector()
-        self.controller_connector.register_callback(self.zmq_callback)
-
-    @property
-    def fsm(self):
-        return self._fsm
-
-    def zmq_callback(self, stream, msg_parts):
-        key, data = deserialize_all(*msg_parts)
-        if key == 'test':
-            stream.send_multipart(serialize_all(key, 'OK'))
-        if key == 'solution_check':
-            stream.send_multipart(serialize_all(key, {
-                'solved': self.fsm.is_solved(),
-                'message': 'solved' if self.fsm.is_solved() else 'not solved'
-            }))
-
-    def listen(self, port):
-        self.application.listen(port)
 
 
 if __name__ == '__main__':