nonebot2/nonebot/drivers/__init__.py
2020-10-16 01:10:46 +08:00

178 lines
4.4 KiB
Python

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
后端驱动适配基类
===============
各驱动请继承以下基类
"""
import abc
from nonebot.log import logger
from nonebot.config import Env, Config
from nonebot.typing import Bot, Dict, Type, Union, Optional, Callable
class BaseDriver(abc.ABC):
"""
Driver 基类。将后端框架封装,以满足适配器使用。
"""
_adapters: Dict[str, Type[Bot]] = {}
"""
:类型: ``Dict[str, Type[Bot]]``
:说明: 已注册的适配器列表
"""
@abc.abstractmethod
def __init__(self, env: Env, config: Config):
"""
:参数:
* ``env: Env``: 包含环境信息的 Env 对象
* ``config: Config``: 包含配置信息的 Config 对象
"""
self.env = env.environment
"""
:类型: ``str``
:说明: 环境名称
"""
self.config = config
"""
:类型: ``Config``
:说明: 配置对象
"""
self._clients: Dict[str, Bot] = {}
"""
:类型: ``Dict[str, Bot]``
:说明: 已连接的 Bot
"""
@classmethod
def register_adapter(cls, name: str, adapter: Type[Bot]):
"""
:说明:
注册一个协议适配器
:参数:
* ``name: str``: 适配器名称,用于在连接时进行识别
* ``adapter: Type[Bot]``: 适配器 Class
"""
cls._adapters[name] = adapter
logger.opt(
colors=True).debug(f'Succeeded to load adapter "<y>{name}</y>"')
@property
@abc.abstractmethod
def type(self):
"""驱动类型名称"""
raise NotImplementedError
@property
@abc.abstractmethod
def server_app(self):
"""驱动 APP 对象"""
raise NotImplementedError
@property
@abc.abstractmethod
def asgi(self):
"""驱动 ASGI 对象"""
raise NotImplementedError
@property
@abc.abstractmethod
def logger(self):
"""驱动专属 logger 日志记录器"""
raise NotImplementedError
@property
def bots(self) -> Dict[str, Bot]:
"""
:类型: ``Dict[str, Bot]``
:说明: 获取当前所有已连接的 Bot
"""
return self._clients
@abc.abstractmethod
def on_startup(self, func: Callable) -> Callable:
"""注册一个在驱动启动时运行的函数"""
raise NotImplementedError
@abc.abstractmethod
def on_shutdown(self, func: Callable) -> Callable:
"""注册一个在驱动停止时运行的函数"""
raise NotImplementedError
@abc.abstractmethod
def run(self,
host: Optional[str] = None,
port: Optional[int] = None,
*args,
**kwargs):
"""
:说明:
启动驱动框架
:参数:
* ``host: Optional[str]``: 驱动绑定 IP
* ``post: Optional[int]``: 驱动绑定端口
* ``*args``
* ``**kwargs``
"""
raise NotImplementedError
@abc.abstractmethod
async def _handle_http(self):
"""用于处理 HTTP 类型请求的函数"""
raise NotImplementedError
@abc.abstractmethod
async def _handle_ws_reverse(self):
"""用于处理 WebSocket 类型请求的函数"""
raise NotImplementedError
class BaseWebSocket(object):
"""WebSocket 连接封装,统一接口方便外部调用。"""
@abc.abstractmethod
def __init__(self, websocket):
"""
:参数:
* ``websocket: Any``: WebSocket 连接对象
"""
self._websocket = websocket
@property
def websocket(self):
"""WebSocket 连接对象"""
return self._websocket
@property
@abc.abstractmethod
def closed(self):
"""
:类型: ``bool``
:说明: 连接是否已经关闭
"""
raise NotImplementedError
@abc.abstractmethod
async def accept(self):
"""接受 WebSocket 连接请求"""
raise NotImplementedError
@abc.abstractmethod
async def close(self, code: int):
"""关闭 WebSocket 连接请求"""
raise NotImplementedError
@abc.abstractmethod
async def receive(self) -> dict:
"""接收一条 WebSocket 信息"""
raise NotImplementedError
@abc.abstractmethod
async def send(self, data: dict):
"""发送一条 WebSocket 信息"""
raise NotImplementedError