Use secrets for websocket server

.gitignore

@@ -1,2 +1,4 @@
 Binaries/
 Intermediate/
+python/
+secrets.toml

README.md

@@ -6,10 +6,23 @@ I tried Redis PubSub first, but the plugin I found was buggy. I'm trying WebSock
 
 ## Installation
 
-1. Install the [BlueprintWebSocket](https://www.unrealengine.com/marketplace/en-US/product/blueprintwebsocket) 
+1. Install python and dependencies
+
+```
+# Windows works just as Linux,
+python -m venv python
+
+# Except for activating the venv
+.\python\Scripts\Activate.ps1
+
+# Then it's easy again,
+pip install -r requirements.txt
+```
+
+2. Install the [BlueprintWebSocket](https://www.unrealengine.com/marketplace/en-US/product/blueprintwebsocket) 
 plugin (paid/commercial) from the Epic/Unreal Marketplace. It's not expensive and has great documentation.
 
-2. You need to adjust the main project's build dependencies (`ProjectName.Build.cs`) to include the following,
+3. You need to adjust the main project's build dependencies (`ProjectName.Build.cs`) to include the following,
 
 ```
 		PublicDependencyModuleNames.AddRange(new string[] { 

server.py

@@ -4,57 +4,9 @@ import aioredis
 import asyncio
 import redis
 import sys
+import toml
 import websockets
 
-#redis_client = redis.Redis(host='localhost', port=6379, db=0)
-
-# Redis pubsub (blocking)
-"""
-pool = redis.ConnectionPool(host='localhost', port=6379, password='', db=0)
-redis_pool = redis.StrictRedis(connection_pool=pool)
-
-pubsub = redis_pool.pubsub()
-pubsub.subscribe('testing')
-pubsub.subscribe('foo')
-
-
-#for message in pubsub.listen():
-#    if message['data'] == 'exit':
-#        sys.exit()
-#    print(message)
-"""
-
-# Single request/response websocket
-"""
-async def hello(websocket, path):
-    name = await websocket.recv()
-    print(f"< {name}")
-
-    greeting = f"Hello {name}!"
-
-    await websocket.send(greeting)
-    print(f"> {greeting}")
-
-start_server = websockets.serve(hello, "localhost", 8765)
-
-asyncio.get_event_loop().run_until_complete(start_server)
-asyncio.get_event_loop().run_forever()
-"""
-
-# Infinitely publishing websocket server:
-"""
-async def time(websocket, path):
-    while True:
-        now = datetime.datetime.utcnow().isoformat() + "Z"
-        await websocket.send(now)
-        await asyncio.sleep(random.random() * 3)
-
-start_server = websockets.serve(time, "127.0.0.1", 5678)
-
-asyncio.get_event_loop().run_until_complete(start_server)
-asyncio.get_event_loop().run_forever()
-"""
-
 from aioredis.pubsub import Receiver
 from aioredis.abc import AbcChannel
 
@@ -64,6 +16,8 @@ CHANNELS = [
   'testing',
 ]
 
+print('reading secrets', flush=True)
+SECRETS = toml.load("secrets.toml")
 
 print('defining server', flush=True)
 
@@ -91,26 +45,15 @@ async def server(websocket, path):
 
     asyncio.ensure_future(reader(mpsc))
 
-    redis = await aioredis.create_redis_pool('redis://localhost')
+    redis = await aioredis.create_redis_pool(SECRETS['redis_url'])
 
-    #await redis.subscribe(mpsc.channel('channel:1'), mpsc.channel('channel:testing'), mpsc.channel('testing'))
     channels = [mpsc.channel(ch) for ch in CHANNELS]
-
     await redis.subscribe(*channels)
 
     print('starting websocket server', flush=True)
     try:
         while True:
-            # Receive data from "the outside world"
+            # TODO: Do we need to ping to keepalive?
-            #message = await websocket.recv()
-
-            # Feed this data to the PUBLISH co-routine
-            #await publish_to_redis(message, path) 
-
-
-            #print('sending ping', flush=True)
-            #await websocket.send("Websocket ping")
-
             if not queue.empty():
                 msg = queue.get_nowait() # TODO THROWS EXCEPTION IF EMPTY (data race?)