astrbbbb / astrbot /core /platform /message_session.py
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from dataclasses import dataclass, field
from astrbot.core.platform.message_type import MessageType
@dataclass
class MessageSession:
"""描述一条消息在 AstrBot 中对应的会话的唯一标识。
如果您需要实例化 MessageSession,请不要给 platform_id 赋值(或者同时给 platform_name 和 platform_id 赋值相同值)。它会在 __post_init__ 中自动设置为 platform_name 的值。
"""
platform_name: str
"""平台适配器实例的唯一标识符。自 AstrBot v4.0.0 起,该字段实际为 platform_id。"""
message_type: MessageType
session_id: str
platform_id: str = field(init=False)
def __str__(self) -> str:
return f"{self.platform_id}:{self.message_type.value}:{self.session_id}"
def __post_init__(self):
self.platform_id = self.platform_name
@staticmethod
def from_str(session_str: str):
platform_id, message_type, session_id = session_str.split(":", 2)
return MessageSession(platform_id, MessageType(message_type), session_id)
MessageSesion = MessageSession # back compatibility