mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-12-01 01:25:07 +08:00
577 lines
16 KiB
Python
577 lines
16 KiB
Python
"""
|
||
协议适配基类
|
||
============
|
||
|
||
各协议请继承以下基类，并使用 ``driver.register_adapter`` 注册适配器
|
||
"""
|
||
|
||
import abc
|
||
import asyncio
|
||
from copy import copy
|
||
from functools import reduce, partial
|
||
from typing_extensions import Protocol
|
||
from dataclasses import dataclass, field
|
||
from typing import (Any, Set, Dict, Union, TypeVar, Mapping, Optional, Iterable,
|
||
Awaitable, TYPE_CHECKING)
|
||
|
||
from pydantic import BaseModel
|
||
|
||
from nonebot.log import logger
|
||
from nonebot.utils import DataclassEncoder
|
||
from nonebot.typing import T_CallingAPIHook, T_CalledAPIHook
|
||
|
||
if TYPE_CHECKING:
|
||
from nonebot.config import Config
|
||
from nonebot.drivers import Driver, WebSocket
|
||
|
||
|
||
class _ApiCall(Protocol):
|
||
|
||
def __call__(self, **kwargs: Any) -> Awaitable[Any]:
|
||
...
|
||
|
||
|
||
class Bot(abc.ABC):
|
||
"""
|
||
Bot 基类。用于处理上报消息，并提供 API 调用接口。
|
||
"""
|
||
|
||
driver: "Driver"
|
||
"""Driver 对象"""
|
||
config: "Config"
|
||
"""Config 配置对象"""
|
||
_calling_api_hook: Set[T_CallingAPIHook] = set()
|
||
"""
|
||
:类型: ``Set[T_CallingAPIHook]``
|
||
:说明: call_api 时执行的函数
|
||
"""
|
||
_called_api_hook: Set[T_CalledAPIHook] = set()
|
||
"""
|
||
:类型: ``Set[T_CalledAPIHook]``
|
||
:说明: call_api 后执行的函数
|
||
"""
|
||
|
||
@abc.abstractmethod
|
||
def __init__(self,
|
||
connection_type: str,
|
||
self_id: str,
|
||
*,
|
||
websocket: Optional["WebSocket"] = None):
|
||
"""
|
||
:参数:
|
||
|
||
* ``connection_type: str``: http 或者 websocket
|
||
* ``self_id: str``: 机器人 ID
|
||
* ``websocket: Optional[WebSocket]``: Websocket 连接对象
|
||
"""
|
||
self.connection_type = connection_type
|
||
"""连接类型"""
|
||
self.self_id = self_id
|
||
"""机器人 ID"""
|
||
self.websocket = websocket
|
||
"""Websocket 连接对象"""
|
||
|
||
def __getattr__(self, name: str) -> _ApiCall:
|
||
return partial(self.call_api, name)
|
||
|
||
@property
|
||
@abc.abstractmethod
|
||
def type(self) -> str:
|
||
"""Adapter 类型"""
|
||
raise NotImplementedError
|
||
|
||
@classmethod
|
||
def register(cls, driver: "Driver", config: "Config"):
|
||
"""
|
||
:说明:
|
||
|
||
`register` 方法会在 `driver.register_adapter` 时被调用，用于初始化相关配置
|
||
"""
|
||
cls.driver = driver
|
||
cls.config = config
|
||
|
||
@classmethod
|
||
@abc.abstractmethod
|
||
async def check_permission(cls, driver: "Driver", connection_type: str,
|
||
headers: dict, body: Optional[bytes]) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
检查连接请求是否合法的函数，如果合法则返回当前连接 ``唯一标识符``，通常为机器人 ID；如果不合法则抛出 ``RequestDenied`` 异常。
|
||
|
||
:参数:
|
||
|
||
* ``driver: Driver``: Driver 对象
|
||
* ``connection_type: str``: 连接类型
|
||
* ``headers: dict``: 请求头
|
||
* ``body: Optional[bytes]``: 请求数据，WebSocket 连接该部分为 None
|
||
|
||
:返回:
|
||
|
||
- ``str``: 连接唯一标识符
|
||
|
||
:异常:
|
||
|
||
- ``RequestDenied``: 请求非法
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
async def handle_message(self, message: dict):
|
||
"""
|
||
:说明:
|
||
|
||
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。
|
||
|
||
:参数:
|
||
|
||
* ``message: dict``: 收到的上报消息
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
async def _call_api(self, api: str, **data) -> Any:
|
||
"""
|
||
:说明:
|
||
|
||
``adapter`` 实际调用 api 的逻辑实现函数，实现该方法以调用 api。
|
||
|
||
:参数:
|
||
|
||
* ``api: str``: API 名称
|
||
* ``**data``: API 数据
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
async def call_api(self, api: str, **data: Any) -> Any:
|
||
"""
|
||
:说明:
|
||
|
||
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
|
||
|
||
:参数:
|
||
|
||
* ``api: str``: API 名称
|
||
* ``self_id: Optional[str]``: 指定调用 API 的机器人
|
||
* ``**data``: API 数据
|
||
|
||
:示例:
|
||
|
||
.. code-block:: python
|
||
|
||
await bot.call_api("send_msg", message="hello world")
|
||
await bot.send_msg(message="hello world")
|
||
"""
|
||
coros = list(map(lambda x: x(self, api, data), self._calling_api_hook))
|
||
if coros:
|
||
try:
|
||
logger.debug("Running CallingAPI hooks...")
|
||
await asyncio.gather(*coros)
|
||
except Exception as e:
|
||
logger.opt(colors=True, exception=e).error(
|
||
"<r><bg #f8bbd0>Error when running CallingAPI hook. "
|
||
"Running cancelled!</bg #f8bbd0></r>")
|
||
|
||
exception = None
|
||
result = None
|
||
|
||
try:
|
||
if "self_id" in data and data["self_id"]:
|
||
bot = self.driver.bots[str(data["self_id"])]
|
||
result = await bot._call_api(api, **data)
|
||
else:
|
||
result = await self._call_api(api, **data)
|
||
except Exception as e:
|
||
exception = e
|
||
|
||
coros = list(
|
||
map(lambda x: x(self, exception, api, data, result),
|
||
self._called_api_hook))
|
||
if coros:
|
||
try:
|
||
logger.debug("Running CalledAPI hooks...")
|
||
await asyncio.gather(*coros)
|
||
except Exception as e:
|
||
logger.opt(colors=True, exception=e).error(
|
||
"<r><bg #f8bbd0>Error when running CalledAPI hook. "
|
||
"Running cancelled!</bg #f8bbd0></r>")
|
||
|
||
if exception:
|
||
raise exception
|
||
return result
|
||
|
||
@abc.abstractmethod
|
||
async def send(self, event: "Event", message: Union[str, "Message",
|
||
"MessageSegment"],
|
||
**kwargs) -> Any:
|
||
"""
|
||
:说明:
|
||
|
||
调用机器人基础发送消息接口
|
||
|
||
:参数:
|
||
|
||
* ``event: Event``: 上报事件
|
||
* ``message: Union[str, Message, MessageSegment]``: 要发送的消息
|
||
* ``**kwargs``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@classmethod
|
||
def on_calling_api(cls, func: T_CallingAPIHook) -> T_CallingAPIHook:
|
||
cls._calling_api_hook.add(func)
|
||
return func
|
||
|
||
@classmethod
|
||
def on_called_api(cls, func: T_CalledAPIHook) -> T_CalledAPIHook:
|
||
cls._called_api_hook.add(func)
|
||
return func
|
||
|
||
|
||
T_Message = TypeVar("T_Message", bound="Message")
|
||
T_MessageSegment = TypeVar("T_MessageSegment", bound="MessageSegment")
|
||
|
||
|
||
@dataclass
|
||
class MessageSegment(abc.ABC, Mapping):
|
||
"""消息段基类"""
|
||
type: str
|
||
"""
|
||
- 类型: ``str``
|
||
- 说明: 消息段类型
|
||
"""
|
||
data: Dict[str, Any] = field(default_factory=lambda: {})
|
||
"""
|
||
- 类型: ``Dict[str, Union[str, list]]``
|
||
- 说明: 消息段数据
|
||
"""
|
||
|
||
@abc.abstractmethod
|
||
def __str__(self) -> str:
|
||
"""该消息段所代表的 str，在命令匹配部分使用"""
|
||
raise NotImplementedError
|
||
|
||
def __len__(self) -> int:
|
||
return len(str(self))
|
||
|
||
def __ne__(self: T_MessageSegment, other: T_MessageSegment) -> bool:
|
||
return not self == other
|
||
|
||
@abc.abstractmethod
|
||
def __add__(self: T_MessageSegment, other: Union[str, T_MessageSegment,
|
||
T_Message]) -> T_Message:
|
||
"""你需要在这里实现不同消息段的合并：
|
||
比如：
|
||
if isinstance(other, str):
|
||
...
|
||
elif isinstance(other, MessageSegment):
|
||
...
|
||
注意：需要返回一个新生成的对象
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
def __radd__(
|
||
self: T_MessageSegment, other: Union[str, dict, list, T_MessageSegment,
|
||
T_Message]) -> "T_Message":
|
||
"""你需要在这里实现不同消息段的合并：
|
||
比如：
|
||
if isinstance(other, str):
|
||
...
|
||
elif isinstance(other, MessageSegment):
|
||
...
|
||
注意：需要返回一个新生成的对象
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
def __getitem__(self, key):
|
||
return getattr(self, key)
|
||
|
||
def __setitem__(self, key, value):
|
||
return setattr(self, key, value)
|
||
|
||
def __iter__(self):
|
||
yield from self.data.__iter__()
|
||
|
||
def __contains__(self, key: object) -> bool:
|
||
return key in self.data
|
||
|
||
def get(self, key: str, default=None):
|
||
return getattr(self, key, default)
|
||
|
||
def keys(self):
|
||
return self.data.keys()
|
||
|
||
def values(self):
|
||
return self.data.values()
|
||
|
||
def items(self):
|
||
return self.data.items()
|
||
|
||
def copy(self: T_MessageSegment) -> T_MessageSegment:
|
||
return copy(self)
|
||
|
||
@abc.abstractmethod
|
||
def is_text(self) -> bool:
|
||
raise NotImplementedError
|
||
|
||
|
||
class Message(list, abc.ABC):
|
||
"""消息数组"""
|
||
|
||
def __init__(self,
|
||
message: Union[str, None, Mapping, Iterable[Mapping],
|
||
T_MessageSegment, T_Message, Any] = None,
|
||
*args,
|
||
**kwargs):
|
||
"""
|
||
:参数:
|
||
|
||
* ``message: Union[str, list, dict, MessageSegment, Message, Any]``: 消息内容
|
||
"""
|
||
super().__init__(*args, **kwargs)
|
||
if message is None:
|
||
return
|
||
elif isinstance(message, Message):
|
||
self.extend(message)
|
||
elif isinstance(message, MessageSegment):
|
||
self.append(message)
|
||
else:
|
||
self.extend(self._construct(message))
|
||
|
||
def __str__(self):
|
||
return ''.join((str(seg) for seg in self))
|
||
|
||
@classmethod
|
||
def __get_validators__(cls):
|
||
yield cls._validate
|
||
|
||
@classmethod
|
||
def _validate(cls, value):
|
||
return cls(value)
|
||
|
||
@staticmethod
|
||
@abc.abstractmethod
|
||
def _construct(
|
||
msg: Union[str, Mapping, Iterable[Mapping], Any]
|
||
) -> Iterable[T_MessageSegment]:
|
||
raise NotImplementedError
|
||
|
||
def __add__(self: T_Message, other: Union[str, T_MessageSegment,
|
||
T_Message]) -> T_Message:
|
||
result = self.__class__(self)
|
||
if isinstance(other, str):
|
||
result.extend(self._construct(other))
|
||
elif isinstance(other, MessageSegment):
|
||
result.append(other)
|
||
elif isinstance(other, Message):
|
||
result.extend(other)
|
||
return result
|
||
|
||
def __radd__(self: T_Message, other: Union[str, T_MessageSegment,
|
||
T_Message]) -> T_Message:
|
||
result = self.__class__(other)
|
||
return result.__add__(self)
|
||
|
||
def __iadd__(self: T_Message, other: Union[str, T_MessageSegment,
|
||
T_Message]) -> T_Message:
|
||
if isinstance(other, str):
|
||
self.extend(self._construct(other))
|
||
elif isinstance(other, MessageSegment):
|
||
self.append(other)
|
||
elif isinstance(other, Message):
|
||
self.extend(other)
|
||
return self
|
||
|
||
def append(self: T_Message, obj: Union[str, T_MessageSegment]) -> T_Message:
|
||
"""
|
||
:说明:
|
||
|
||
添加一个消息段到消息数组末尾
|
||
|
||
:参数:
|
||
|
||
* ``obj: Union[str, MessageSegment]``: 要添加的消息段
|
||
"""
|
||
if isinstance(obj, MessageSegment):
|
||
super().append(obj)
|
||
elif isinstance(obj, str):
|
||
self.extend(self._construct(obj))
|
||
else:
|
||
raise ValueError(f"Unexpected type: {type(obj)} {obj}")
|
||
return self
|
||
|
||
def extend(self: T_Message,
|
||
obj: Union[T_Message, Iterable[T_MessageSegment]]) -> T_Message:
|
||
"""
|
||
:说明:
|
||
|
||
拼接一个消息数组或多个消息段到消息数组末尾
|
||
|
||
:参数:
|
||
|
||
* ``obj: Union[Message, Iterable[MessageSegment]]``: 要添加的消息数组
|
||
"""
|
||
for segment in obj:
|
||
self.append(segment)
|
||
return self
|
||
|
||
def reduce(self: T_Message) -> None:
|
||
"""
|
||
:说明:
|
||
|
||
缩减消息数组，即按 MessageSegment 的实现拼接相邻消息段
|
||
"""
|
||
index = 0
|
||
while index < len(self):
|
||
if index > 0 and self[index -
|
||
1].is_text() and self[index].is_text():
|
||
self[index - 1] += self[index]
|
||
del self[index]
|
||
else:
|
||
index += 1
|
||
|
||
def extract_plain_text(self: T_Message) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
提取消息内纯文本消息
|
||
"""
|
||
|
||
def _concat(x: str, y: T_MessageSegment) -> str:
|
||
return f"{x} {y}" if y.is_text() else x
|
||
|
||
plain_text = reduce(_concat, self, "")
|
||
return plain_text[1:] if plain_text else plain_text
|
||
|
||
|
||
class Event(abc.ABC, BaseModel):
|
||
"""Event 基类。提供获取关键信息的方法，其余信息可直接获取。"""
|
||
|
||
class Config:
|
||
extra = "allow"
|
||
json_encoders = {Message: DataclassEncoder}
|
||
|
||
@abc.abstractmethod
|
||
def get_type(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件类型的方法，类型通常为 NoneBot 内置的四种类型。
|
||
|
||
:返回:
|
||
|
||
* ``Literal["message", "notice", "request", "meta_event"]``
|
||
* 其他自定义 ``str``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
def get_event_name(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件名称的方法。
|
||
|
||
:返回:
|
||
|
||
* ``str``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
def get_event_description(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件描述的方法，通常为事件具体内容。
|
||
|
||
:返回:
|
||
|
||
* ``str``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
def __str__(self) -> str:
|
||
return f"[{self.get_event_name()}]: {self.get_event_description()}"
|
||
|
||
def get_log_string(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件日志信息的方法，通常你不需要修改这个方法，只有当希望 NoneBot 隐藏该事件日志时，可以抛出 ``NoLogException`` 异常。
|
||
|
||
:返回:
|
||
|
||
* ``str``
|
||
|
||
:异常:
|
||
|
||
- ``NoLogException``
|
||
"""
|
||
return f"[{self.get_event_name()}]: {self.get_event_description()}"
|
||
|
||
@abc.abstractmethod
|
||
def get_user_id(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件主体 id 的方法，通常是用户 id 。
|
||
|
||
:返回:
|
||
|
||
* ``str``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
def get_session_id(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取会话 id 的方法，用于判断当前事件属于哪一个会话，通常是用户 id、群组 id 组合。
|
||
|
||
:返回:
|
||
|
||
* ``str``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
@abc.abstractmethod
|
||
def get_message(self) -> Message:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件消息内容的方法。
|
||
|
||
:返回:
|
||
|
||
* ``Message``
|
||
"""
|
||
raise NotImplementedError
|
||
|
||
def get_plaintext(self) -> str:
|
||
"""
|
||
:说明:
|
||
|
||
获取消息纯文本的方法，通常不需要修改，默认通过 ``get_message().extract_plain_text`` 获取。
|
||
|
||
:返回:
|
||
|
||
* ``str``
|
||
"""
|
||
return self.get_message().extract_plain_text()
|
||
|
||
@abc.abstractmethod
|
||
def is_tome(self) -> bool:
|
||
"""
|
||
:说明:
|
||
|
||
获取事件是否与机器人有关的方法。
|
||
|
||
:返回:
|
||
|
||
* ``bool``
|
||
"""
|
||
raise NotImplementedError
|