mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-12-18 17:35:46 +08:00
397 lines
11 KiB
Python
397 lines
11 KiB
Python
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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协议适配基类
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============
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各协议请继承以下基类，并使用 ``driver.register_adapter`` 注册适配器
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"""
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import abc
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from functools import reduce, partial
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from dataclasses import dataclass, field
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from nonebot.config import Config
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from nonebot.typing import Driver, Message, WebSocket
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from nonebot.typing import Any, Dict, Union, Optional, Callable, Iterable, Awaitable
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class BaseBot(abc.ABC):
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"""
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Bot 基类。用于处理上报消息，并提供 API 调用接口。
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"""
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@abc.abstractmethod
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def __init__(self,
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driver: Driver,
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connection_type: str,
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config: Config,
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self_id: str,
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*,
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websocket: Optional[WebSocket] = None):
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"""
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:参数:
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* ``driver: Driver``: Driver 对象
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* ``connection_type: str``: http 或者 websocket
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* ``config: Config``: Config 对象
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* ``self_id: str``: 机器人 ID
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* ``websocket: Optional[WebSocket]``: Websocket 连接对象
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"""
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self.driver = driver
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"""Driver 对象"""
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self.connection_type = connection_type
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"""连接类型"""
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self.config = config
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"""Config 配置对象"""
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self.self_id = self_id
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"""机器人 ID"""
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self.websocket = websocket
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"""Websocket 连接对象"""
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def __getattr__(self, name: str) -> Callable[..., Awaitable[Any]]:
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return partial(self.call_api, name)
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@property
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@abc.abstractmethod
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def type(self) -> str:
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"""Adapter 类型"""
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raise NotImplementedError
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@abc.abstractmethod
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async def handle_message(self, message: dict):
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"""
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:说明:
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处理上报消息的函数，转换为 ``Event`` 事件后调用 ``nonebot.message.handle_event`` 进一步处理事件。
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:参数:
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* ``message: dict``: 收到的上报消息
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"""
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raise NotImplementedError
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@abc.abstractmethod
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async def call_api(self, api: str, **data):
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"""
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:说明:
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调用机器人 API 接口，可以通过该函数或直接通过 bot 属性进行调用
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:参数:
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* ``api: str``: API 名称
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* ``**data``: API 数据
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:示例:
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.. code-block:: python
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await bot.call_api("send_msg", data={"message": "hello world"})
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await bot.send_msg(message="hello world")
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"""
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raise NotImplementedError
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@abc.abstractmethod
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async def send(self, event: "BaseEvent",
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message: Union[str, "BaseMessage",
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"BaseMessageSegment"], **kwargs):
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"""
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:说明:
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调用机器人基础发送消息接口
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:参数:
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* ``event: Event``: 上报事件
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* ``message: Union[str, Message, MessageSegment]``: 要发送的消息
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* ``**kwargs``
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"""
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raise NotImplementedError
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class BaseEvent(abc.ABC):
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"""
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Event 基类。提供上报信息的关键信息，其余信息可从原始上报消息获取。
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"""
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def __init__(self, raw_event: dict):
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"""
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:参数:
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* ``raw_event: dict``: 原始上报消息
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"""
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self._raw_event = raw_event
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def __repr__(self) -> str:
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return f"<Event {self.self_id}: {self.name} {self.time}>"
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@property
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def raw_event(self) -> dict:
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"""原始上报消息"""
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return self._raw_event
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@property
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@abc.abstractmethod
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def id(self) -> int:
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"""事件 ID"""
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def name(self) -> str:
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"""事件名称"""
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def self_id(self) -> str:
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"""机器人 ID"""
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def time(self) -> int:
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"""事件发生时间"""
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def type(self) -> str:
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"""事件主类型"""
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raise NotImplementedError
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@type.setter
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@abc.abstractmethod
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def type(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def detail_type(self) -> str:
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"""事件详细类型"""
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raise NotImplementedError
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@detail_type.setter
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@abc.abstractmethod
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def detail_type(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def sub_type(self) -> Optional[str]:
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"""事件子类型"""
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raise NotImplementedError
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@sub_type.setter
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@abc.abstractmethod
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def sub_type(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def user_id(self) -> Optional[int]:
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"""触发事件的主体 ID"""
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raise NotImplementedError
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@user_id.setter
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@abc.abstractmethod
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def user_id(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def group_id(self) -> Optional[int]:
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"""触发事件的主体群 ID"""
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raise NotImplementedError
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@group_id.setter
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@abc.abstractmethod
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def group_id(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def to_me(self) -> Optional[bool]:
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"""事件是否为发送给机器人的消息"""
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raise NotImplementedError
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@to_me.setter
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@abc.abstractmethod
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def to_me(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def message(self) -> Optional[Message]:
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"""消息内容"""
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raise NotImplementedError
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@message.setter
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@abc.abstractmethod
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def message(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def reply(self) -> Optional[dict]:
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"""回复的消息"""
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raise NotImplementedError
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@reply.setter
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@abc.abstractmethod
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def reply(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def raw_message(self) -> Optional[str]:
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"""原始消息"""
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raise NotImplementedError
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@raw_message.setter
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@abc.abstractmethod
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def raw_message(self, value) -> None:
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def plain_text(self) -> Optional[str]:
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"""纯文本消息"""
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raise NotImplementedError
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@property
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@abc.abstractmethod
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def sender(self) -> Optional[dict]:
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"""消息发送者信息"""
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raise NotImplementedError
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@sender.setter
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@abc.abstractmethod
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def sender(self, value) -> None:
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raise NotImplementedError
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@dataclass
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class BaseMessageSegment(abc.ABC):
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"""消息段基类"""
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type: str
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"""
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- 类型: ``str``
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- 说明: 消息段类型
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"""
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data: Dict[str, Any] = field(default_factory=lambda: {})
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"""
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- 类型: ``Dict[str, Union[str, list]]``
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- 说明: 消息段数据
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"""
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@abc.abstractmethod
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def __str__(self):
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raise NotImplementedError
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@abc.abstractmethod
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def __add__(self, other):
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raise NotImplementedError
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def __getitem__(self, key):
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return getattr(self, key)
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def __setitem__(self, key, value):
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return setattr(self, key, value)
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@classmethod
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@abc.abstractmethod
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def text(cls, text: str) -> "BaseMessageSegment":
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return cls("text", {"text": text})
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class BaseMessage(list, abc.ABC):
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"""消息数组"""
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def __init__(self,
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message: Union[str, dict, list, BaseMessageSegment,
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"BaseMessage"] = None,
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*args,
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**kwargs):
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"""
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:参数:
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* ``message: Union[str, dict, list, MessageSegment, Message]``: 消息内容
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"""
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super().__init__(*args, **kwargs)
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if isinstance(message, (str, dict, list)):
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self.extend(self._construct(message))
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elif isinstance(message, BaseMessage):
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self.extend(message)
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elif isinstance(message, BaseMessageSegment):
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self.append(message)
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def __str__(self):
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return ''.join((str(seg) for seg in self))
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@staticmethod
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@abc.abstractmethod
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def _construct(msg: Union[str, dict, list]) -> Iterable[BaseMessageSegment]:
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raise NotImplementedError
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def __add__(
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self, other: Union[str, BaseMessageSegment,
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"BaseMessage"]) -> "BaseMessage":
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result = self.__class__(self)
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if isinstance(other, str):
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result.extend(self._construct(other))
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elif isinstance(other, BaseMessageSegment):
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result.append(other)
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elif isinstance(other, BaseMessage):
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result.extend(other)
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return result
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def __radd__(self, other: Union[str, BaseMessageSegment, "BaseMessage"]):
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result = self.__class__(other)
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return result.__add__(self)
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def append(self, obj: Union[str, BaseMessageSegment]) -> "BaseMessage":
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"""
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:说明:
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添加一个消息段到消息数组末尾
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:参数:
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* ``obj: Union[str, MessageSegment]``: 要添加的消息段
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"""
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if isinstance(obj, BaseMessageSegment):
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if obj.type == "text" and self and self[-1].type == "text":
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self[-1].data["text"] += obj.data["text"]
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else:
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super().append(obj)
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elif isinstance(obj, str):
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self.extend(self._construct(obj))
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else:
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raise ValueError(f"Unexpected type: {type(obj)} {obj}")
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return self
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def extend(
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self, obj: Union["BaseMessage",
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Iterable[BaseMessageSegment]]) -> "BaseMessage":
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"""
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:说明:
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拼接一个消息数组或多个消息段到消息数组末尾
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:参数:
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* ``obj: Union[Message, Iterable[MessageSegment]]``: 要添加的消息数组
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"""
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for segment in obj:
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self.append(segment)
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return self
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def reduce(self) -> None:
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"""
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:说明:
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缩减消息数组，即拼接相邻纯文本消息段
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"""
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index = 0
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while index < len(self):
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if index > 0 and self[
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index - 1].type == "text" and self[index].type == "text":
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self[index - 1].data["text"] += self[index].data["text"]
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del self[index]
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else:
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index += 1
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def extract_plain_text(self) -> str:
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"""
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:说明:
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提取消息内纯文本消息
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"""
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def _concat(x: str, y: BaseMessageSegment) -> str:
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return f"{x} {y.data['text']}" if y.type == "text" else x
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plain_text = reduce(_concat, self, "")
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return plain_text[1:] if plain_text else plain_text
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