nonebot2/nonebot/drivers/__init__.py

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