mirror of
https://github.com/nonebot/nonebot2.git
synced 2024-11-25 01:25:04 +08:00
367 lines
12 KiB
Python
367 lines
12 KiB
Python
import json
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import re
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from typing import (TYPE_CHECKING, Any, AsyncIterable, Dict, Iterable,
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Optional, Tuple, Union)
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import httpx
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from aiocache import Cache, cached
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from aiocache.serializers import PickleSerializer
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from nonebot.adapters import Bot as BaseBot
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from nonebot.drivers import Driver, HTTPRequest, HTTPResponse
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from nonebot.log import logger
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from nonebot.message import handle_event
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from nonebot.typing import overrides
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from nonebot.utils import escape_tag
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from .config import Config as FeishuConfig
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from .event import (Event, GroupMessageEvent, MessageEvent,
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PrivateMessageEvent, get_event_model)
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from .exception import ActionFailed, ApiNotAvailable, NetworkError
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from .message import Message, MessageSegment, MessageSerializer
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from .utils import AESCipher, log
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if TYPE_CHECKING:
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from nonebot.config import Config
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def _check_at_me(bot: "Bot", event: "Event"):
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"""
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:说明:
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检查消息开头或结尾是否存在 @机器人，去除并赋值 ``event.reply``, ``event.to_me``
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:参数:
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* ``bot: Bot``: Bot 对象
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* ``event: Event``: Event 对象
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"""
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if not isinstance(event, MessageEvent):
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return
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message = event.get_message()
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# ensure message not empty
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if not message:
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message.append(MessageSegment.text(""))
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if event.event.message.chat_type == "p2p":
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event.to_me = True
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for index, segment in enumerate(message):
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if segment.type == "at" and segment.data.get(
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"user_name") in bot.config.nickname:
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event.to_me = True
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del event.event.message.content[index]
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return
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elif segment.type == "text" and segment.data.get("mentions"):
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for mention in segment.data["mentions"].values():
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if mention["name"] in bot.config.nickname:
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event.to_me = True
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segment.data["text"] = segment.data["text"].replace(
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f"@{mention['name']}", "")
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segment.data["text"] = segment.data["text"].lstrip()
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break
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else:
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continue
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break
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if not message:
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message.append(MessageSegment.text(""))
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def _check_nickname(bot: "Bot", event: "Event"):
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"""
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:说明:
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检查消息开头是否存在昵称，去除并赋值 ``event.to_me``
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:参数:
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* ``bot: Bot``: Bot 对象
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* ``event: Event``: Event 对象
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"""
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if not isinstance(event, MessageEvent):
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return
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first_msg_seg = event.get_message()[0]
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if first_msg_seg.type != "text":
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return
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first_text = first_msg_seg.data["text"]
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nicknames = set(filter(lambda n: n, bot.config.nickname))
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if nicknames:
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# check if the user is calling me with my nickname
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nickname_regex = "|".join(nicknames)
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m = re.search(rf"^({nickname_regex})([\s,，]*|$)", first_text,
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re.IGNORECASE)
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if m:
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nickname = m.group(1)
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log("DEBUG", f"User is calling me {nickname}")
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event.to_me = True
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first_msg_seg.data["text"] = first_text[m.end():]
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def _handle_api_result(result: Union[Optional[Dict[str, Any]], str, bytes, Iterable[bytes], AsyncIterable[bytes]]) -> Any:
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"""
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:说明:
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处理 API 请求返回值。
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:参数:
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* ``result: Optional[Dict[str, Any]]``: API 返回数据
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:返回:
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- ``Any``: API 调用返回数据
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:异常:
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- ``ActionFailed``: API 调用失败
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"""
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if isinstance(result, dict):
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if result.get("code") != 0:
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raise ActionFailed(**result)
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return result.get("data")
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else:
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return result
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class Bot(BaseBot):
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"""
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飞书 协议 Bot 适配。继承属性参考 `BaseBot <./#class-basebot>`_ 。
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"""
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@property
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def type(self) -> str:
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return "feishu"
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@property
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def api_root(self) -> str:
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if self.feishu_config.is_lark:
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return "https://open.larksuite.com/open-apis/"
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else:
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return "https://open.feishu.cn/open-apis/"
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@classmethod
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def register(cls, driver: Driver, config: "Config"):
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super().register(driver, config)
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cls.feishu_config = FeishuConfig(**config.dict())
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@classmethod
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@overrides(BaseBot)
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async def check_permission(
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cls, driver: Driver, request: HTTPRequest
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) -> Tuple[Optional[str], Optional[HTTPResponse]]:
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if not isinstance(request, HTTPRequest):
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log("WARNING",
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"Unsupported connection type, available type: `http`")
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return None, HTTPResponse(
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405, b"Unsupported connection type, available type: `http`")
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encrypt_key = cls.feishu_config.encrypt_key
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if encrypt_key:
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encrypted = json.loads(request.body)["encrypt"]
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decrypted = AESCipher(encrypt_key).decrypt_string(encrypted)
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data = json.loads(decrypted)
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else:
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data = json.loads(request.body)
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challenge = data.get("challenge")
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if challenge:
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return data.get("token"), HTTPResponse(
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200,
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json.dumps({
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"challenge": challenge
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}).encode())
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schema = data.get("schema")
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if not schema:
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return None, HTTPResponse(
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400,
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b"Missing `schema` in POST body, only accept event of version 2.0"
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)
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headers = data.get("header")
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if headers:
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token = headers.get("token")
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app_id = headers.get("app_id")
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else:
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log("WARNING", "Missing `header` in POST body")
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return None, HTTPResponse(400, b"Missing `header` in POST body")
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if not token:
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log("WARNING", "Missing `verification token` in POST body")
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return None, HTTPResponse(
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400, b"Missing `verification token` in POST body")
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else:
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if token != cls.feishu_config.verification_token:
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log("WARNING", "Verification token check failed")
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return None, HTTPResponse(403,
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b"Verification token check failed")
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return app_id, HTTPResponse(200, b'')
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async def handle_message(self, message: bytes):
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"""
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:说明:
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处理事件并转换为 `Event <#class-event>`_
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"""
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data: dict = json.loads(message)
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if data.get("type") == "url_verification":
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return
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try:
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header = data["header"]
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event_type = header["event_type"]
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if data.get("event"):
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if data["event"].get("message"):
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event_type += f".{data['event']['message']['chat_type']}"
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models = get_event_model(event_type)
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for model in models:
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try:
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event = model.parse_obj(data)
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break
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except Exception as e:
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log("DEBUG", "Event Parser Error", e)
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else:
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event = Event.parse_obj(data)
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_check_at_me(self, event)
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_check_nickname(self, event)
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await handle_event(self, event)
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except Exception as e:
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logger.opt(colors=True, exception=e).error(
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f"<r><bg #f8bbd0>Failed to handle event. Raw: {escape_tag(str(data))}</bg #f8bbd0></r>"
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)
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def _construct_url(self, path: str) -> str:
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return self.api_root + path
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@cached(ttl=60 * 60,
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cache=Cache.MEMORY,
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key="_feishu_tenant_access_token",
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serializer=PickleSerializer())
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async def _fetch_tenant_access_token(self) -> str:
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try:
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async with httpx.AsyncClient() as client:
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response = await client.post(
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self._construct_url(
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"auth/v3/tenant_access_token/internal/"),
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json={
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"app_id": self.feishu_config.app_id,
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"app_secret": self.feishu_config.app_secret
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},
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timeout=self.config.api_timeout)
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if 200 <= response.status_code < 300:
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result = response.json()
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return result["tenant_access_token"]
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else:
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raise NetworkError(f"HTTP request received unexpected "
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f"status code: {response.status_code}")
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except httpx.InvalidURL:
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raise NetworkError("API root url invalid")
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except httpx.HTTPError:
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raise NetworkError("HTTP request failed")
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@overrides(BaseBot)
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async def _call_api(self, api: str, **data) -> Any:
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log("DEBUG", f"Calling API <y>{api}</y>")
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if isinstance(self.request, HTTPRequest):
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if not self.api_root:
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raise ApiNotAvailable
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headers = {}
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self.feishu_config.tenant_access_token = await self._fetch_tenant_access_token(
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)
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headers[
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"Authorization"] = "Bearer " + self.feishu_config.tenant_access_token
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try:
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async with httpx.AsyncClient(
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timeout=self.config.api_timeout) as client:
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response = await client.send(
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httpx.Request(data["method"],
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self.api_root + api,
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json=data.get("body", {}),
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params=data.get("query", {}),
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headers=headers))
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if 200 <= response.status_code < 300:
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if response.headers["content-type"].startswith("application/json"):
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result = response.json()
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else:
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result = response.content
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return _handle_api_result(result)
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raise NetworkError(f"HTTP request received unexpected "
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f"status code: {response.status_code} "
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f"response body: {response.text}")
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except httpx.InvalidURL:
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raise NetworkError("API root url invalid")
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except httpx.HTTPError:
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raise NetworkError("HTTP request failed")
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@overrides(BaseBot)
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async def call_api(self, api: str, **data) -> Any:
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"""
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:说明:
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调用 飞书 协议 API
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:参数:
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* ``api: str``: API 名称
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* ``**data: Any``: API 参数
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:返回:
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- ``Any``: API 调用返回数据
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:异常:
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- ``NetworkError``: 网络错误
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- ``ActionFailed``: API 调用失败
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"""
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return await super().call_api(api, **data)
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@overrides(BaseBot)
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async def send(self,
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event: Event,
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message: Union[str, Message, MessageSegment],
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at_sender: bool = False,
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**kwargs) -> Any:
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msg = message if isinstance(message, Message) else Message(message)
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if isinstance(event, GroupMessageEvent):
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receive_id, receive_id_type = event.event.message.chat_id, "chat_id"
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elif isinstance(event, PrivateMessageEvent):
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receive_id, receive_id_type = event.get_user_id(), "open_id"
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else:
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raise ValueError(
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"Cannot guess `receive_id` and `receive_id_type` to reply!")
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at_sender = at_sender and bool(event.get_user_id())
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if at_sender and receive_id_type == "chat_id":
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msg = MessageSegment.at(event.get_user_id()) + " " + msg
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msg_type, content = MessageSerializer(msg).serialize()
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params = {
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"method": "POST",
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"query": {
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"receive_id_type": receive_id_type
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},
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"body": {
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"receive_id": receive_id,
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"content": content,
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"msg_type": msg_type
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}
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}
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return await self.call_api(f"im/v1/messages", **params)
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