changed idea on dispatcher, some server scaffolding

aiocraft/dispatcher.py

@@ -106,6 +106,8 @@ class Dispatcher:
 	async def connect(self,
 			host : Optional[str] = None,
 			port : Optional[int] = None,
+			reader : Optional[StreamReader] = None,
+			writer : Optional[StreamWriter] = None,
 			queue_timeout : int = 1,
 			queue_size : int = 100
 	):
@@ -114,36 +116,19 @@ class Dispatcher:
 
 		self._prepare(host, port, queue_timeout, queue_size)
 
-		self._down, self._up = await asyncio.open_connection(
-			host=self._host,
-			port=self._port,
-		)
+		if reader and writer:
+			self._down, self._up = reader, writer
+		else:
+			self._down, self._up = await asyncio.open_connection(
+				host=self._host,
+				port=self._port,
+			)
 
 		self._dispatching = True
 		self._reader = asyncio.get_event_loop().create_task(self._down_worker())
 		self._writer = asyncio.get_event_loop().create_task(self._up_worker(timeout=queue_timeout))
 		self._logger.info("Connected")
 
-	@classmethod
-	def serve(cls,
-			container : List[Dispatcher],
-			host : Optional[str] = None,
-			port : Optional[int] = None,
-			queue_timeout : int = 1,
-			queue_size : int = 100
-	):
-		async def _client_connected(reader:StreamReader, writer:StreamWriter):
-			dispatcher = cls()
-			container.append(dispatcher)
-			dispatcher._prepare(host, port, queue_timeout, queue_size)
-	
-			dispatcher._down, dispatcher._up = reader, writer
-			dispatcher._dispatching = True
-			dispatcher._reader = asyncio.get_event_loop().create_task(dispatcher._down_worker())
-			dispatcher._writer = asyncio.get_event_loop().create_task(dispatcher._up_worker(timeout=queue_timeout))
-			dispatcher._logger.info("Serving client")
-		return _client_connected
-
 	async def disconnect(self, block:bool=True):
 		self._dispatching = False
 		if block and self._writer and self._reader:

aiocraft/server.py

@@ -0,0 +1,127 @@
+import asyncio
+import logging
+import uuid
+
+from asyncio import Task
+from enum import Enum
+
+from typing import Dict, List, Callable, Type, Optional, Tuple, AsyncIterator
+
+from .dispatcher import Dispatcher
+from .mc.packet import Packet
+from .mc.token import Token, AuthException
+from .mc.definitions import Dimension, Difficulty, Gamemode, ConnectionState
+from .mc.proto.handshaking.serverbound import PacketSetProtocol
+from .mc.proto.play.serverbound import PacketKeepAlive as PacketKeepAliveResponse
+from .mc.proto.play.clientbound import PacketKeepAlive, PacketSetCompression, PacketKickDisconnect
+from .mc.proto.login.serverbound import PacketLoginStart, PacketEncryptionBegin as PacketEncryptionResponse
+from .mc.proto.login.clientbound import (
+	PacketCompress, PacketDisconnect, PacketEncryptionBegin, PacketLoginPluginRequest, PacketSuccess
+)
+from .util import encryption
+
+LOGGER = logging.getLogger(__name__)
+
+class Server:
+	host:str
+	port:int
+	options:dict
+
+	_dispatcher_pool : List[Dispatcher]
+	_processing : bool
+	_worker : Task
+	_callbacks = Dict[str, Task]
+
+	_logger : logging.Logger
+
+	def __init__(
+		self,
+		host:str,
+		port:int = 25565,
+		options:dict = None,
+	):
+		self.host = host
+		self.port = port
+
+		self.options = options or {
+			"reconnect" : True,
+			"rctime" : 5.0,
+			"keep-alive" : True,
+			"poll-timeout" : 1,
+		}
+
+		self._dispatcher_pool = []
+		self._processing = False
+		self._authenticated = False
+
+		self._logger = LOGGER.getChild(f"@({self.host}:{self.port})")
+
+	@property
+	def started(self) -> bool:
+		return self._processing
+
+	def run(self):
+		loop = asyncio.get_event_loop()
+
+		loop.run_until_complete(self.start())
+
+		async def idle():
+			while self._processing: # TODO don't busywait even if it doesn't matter much
+				await asyncio.sleep(self.options["poll-timeout"])
+
+		try:
+			loop.run_forever(idle())
+		except KeyboardInterrupt:
+			self._logger.info("Received SIGINT, stopping...")
+			try:
+				loop.run_until_complete(self.stop())
+			except KeyboardInterrupt:
+				self._logger.info("Received SIGINT, stopping for real")
+				loop.run_until_complete(self.stop(wait_tasks=False))
+
+	async def start(self):
+		self._processing = True
+		self._worker = asyncio.get_event_loop().create_task(self._server_worker())
+		self._logger.info("Minecraft server started")
+
+	async def stop(self, block=True, wait_tasks=True):
+		self._processing = False
+		if self.dispatcher.connected:
+			await self.dispatcher.disconnect(block=block)
+		if block:
+			await self._worker
+			self._logger.info("Minecraft server stopped")
+		if block and wait_tasks:
+			await asyncio.gather(*list(self._callbacks.values()))
+
+	async def _server_worker(self):
+		while self._processing:
+			try:
+				await self.authenticate()
+			except AuthException as e:
+				self._logger.error(str(e))
+				break
+			try:
+				await self.dispatcher.connect(self.host, self.port)
+				await self._handshake()
+				if await self._login():
+					await self._play()
+			except ConnectionRefusedError:
+				self._logger.error("Server rejected connection")
+			except Exception:
+				self._logger.exception("Exception in Client connection")
+			if self.dispatcher.connected:
+				await self.dispatcher.disconnect()
+			if not self.options["reconnect"]:
+				break
+			await asyncio.sleep(self.options["rctime"])
+		await self.stop(block=False)
+
+	async def _handshake(self) -> bool: # TODO make this fancier! poll for version and status first
+		pass
+
+	async def _login(self) -> bool:
+		pass
+
+	async def _play(self) -> bool:
+		pass