from __future__ import annotations import typing import asyncio import traceback import datetime from libs.wecom_api.api import WecomClient from pkg.platform.adapter import MessagePlatformAdapter from pkg.platform.types import events as platform_events, message as platform_message from libs.wecom_api.wecomevent import WecomEvent from .. import adapter from ...core import app from ..types import entities as platform_entities from ...command.errors import ParamNotEnoughError from ...utils import image from ..logger import EventLogger class WecomMessageConverter(adapter.MessageConverter): @staticmethod async def yiri2target(message_chain: platform_message.MessageChain, bot: WecomClient): content_list = [] for msg in message_chain: if type(msg) is platform_message.Plain: content_list.append( { 'type': 'text', 'content': msg.text, } ) elif type(msg) is platform_message.Image: content_list.append( { 'type': 'image', 'media_id': await bot.get_media_id(msg), } ) elif type(msg) is platform_message.Forward: for node in msg.node_list: content_list.extend((await WecomMessageConverter.yiri2target(node.message_chain, bot))) else: content_list.append( { 'type': 'text', 'content': str(msg), } ) return content_list @staticmethod async def target2yiri(message: str, message_id: int = -1): yiri_msg_list = [] yiri_msg_list.append(platform_message.Source(id=message_id, time=datetime.datetime.now())) yiri_msg_list.append(platform_message.Plain(text=message)) chain = platform_message.MessageChain(yiri_msg_list) return chain @staticmethod async def target2yiri_image(picurl: str, message_id: int = -1): yiri_msg_list = [] yiri_msg_list.append(platform_message.Source(id=message_id, time=datetime.datetime.now())) image_base64, image_format = await image.get_wecom_image_base64(pic_url=picurl) yiri_msg_list.append(platform_message.Image(base64=f'data:image/{image_format};base64,{image_base64}')) chain = platform_message.MessageChain(yiri_msg_list) return chain class WecomEventConverter: @staticmethod async def yiri2target(event: platform_events.Event, bot_account_id: int, bot: WecomClient) -> WecomEvent: # only for extracting user information if type(event) is platform_events.GroupMessage: pass if type(event) is platform_events.FriendMessage: payload = { 'MsgType': 'text', 'Content': '', 'FromUserName': event.sender.id, 'ToUserName': bot_account_id, 'CreateTime': int(datetime.datetime.now().timestamp()), 'AgentID': event.sender.nickname, } wecom_event = WecomEvent.from_payload(payload=payload) if not wecom_event: raise ValueError('无法从 message_data 构造 WecomEvent 对象') return wecom_event @staticmethod async def target2yiri(event: WecomEvent): """ 将 WecomEvent 转换为平台的 FriendMessage 对象。 Args: event (WecomEvent): 企业微信事件。 Returns: platform_events.FriendMessage: 转换后的 FriendMessage 对象。 """ # 转换消息链 if event.type == 'text': yiri_chain = await WecomMessageConverter.target2yiri(event.message, event.message_id) friend = platform_entities.Friend( id=f'u{event.user_id}', nickname=str(event.agent_id), remark='', ) return platform_events.FriendMessage(sender=friend, message_chain=yiri_chain, time=event.timestamp) elif event.type == 'image': friend = platform_entities.Friend( id=f'u{event.user_id}', nickname=str(event.agent_id), remark='', ) yiri_chain = await WecomMessageConverter.target2yiri_image(picurl=event.picurl, message_id=event.message_id) return platform_events.FriendMessage(sender=friend, message_chain=yiri_chain, time=event.timestamp) class WecomAdapter(adapter.MessagePlatformAdapter): bot: WecomClient ap: app.Application bot_account_id: str message_converter: WecomMessageConverter = WecomMessageConverter() event_converter: WecomEventConverter = WecomEventConverter() config: dict def __init__(self, config: dict, ap: app.Application, logger: EventLogger): self.config = config self.ap = ap self.logger = logger required_keys = [ 'corpid', 'secret', 'token', 'EncodingAESKey', 'contacts_secret', ] missing_keys = [key for key in required_keys if key not in config] if missing_keys: raise ParamNotEnoughError('企业微信缺少相关配置项，请查看文档或联系管理员') self.bot = WecomClient( corpid=config['corpid'], secret=config['secret'], token=config['token'], EncodingAESKey=config['EncodingAESKey'], contacts_secret=config['contacts_secret'], logger=self.logger ) async def reply_message( self, message_source: platform_events.MessageEvent, message: platform_message.MessageChain, quote_origin: bool = False, ): Wecom_event = await WecomEventConverter.yiri2target(message_source, self.bot_account_id, self.bot) content_list = await WecomMessageConverter.yiri2target(message, self.bot) fixed_user_id = Wecom_event.user_id # 删掉开头的u fixed_user_id = fixed_user_id[1:] for content in content_list: if content['type'] == 'text': await self.bot.send_private_msg(fixed_user_id, Wecom_event.agent_id, content['content']) elif content['type'] == 'image': await self.bot.send_image(fixed_user_id, Wecom_event.agent_id, content['media_id']) async def send_message(self, target_type: str, target_id: str, message: platform_message.MessageChain): """企业微信目前只有发送给个人的方法， 构造target_id的方式为前半部分为账户id，后半部分为agent_id,中间使用“|”符号隔开。 """ content_list = await WecomMessageConverter.yiri2target(message, self.bot) parts = target_id.split('|') user_id = parts[0] agent_id = int(parts[1]) if target_type == 'person': for content in content_list: if content['type'] == 'text': await self.bot.send_private_msg(user_id, agent_id, content['content']) if content['type'] == 'image': await self.bot.send_image(user_id, agent_id, content['media']) def register_listener( self, event_type: typing.Type[platform_events.Event], callback: typing.Callable[[platform_events.Event, adapter.MessagePlatformAdapter], None], ): async def on_message(event: WecomEvent): self.bot_account_id = event.receiver_id try: return await callback(await self.event_converter.target2yiri(event), self) except Exception as e: await self.logger.error(f"Error in wecom callback: {traceback.format_exc()}") if event_type == platform_events.FriendMessage: self.bot.on_message('text')(on_message) self.bot.on_message('image')(on_message) elif event_type == platform_events.GroupMessage: pass async def run_async(self): async def shutdown_trigger_placeholder(): while True: await asyncio.sleep(1) await self.bot.run_task( host=self.config['host'], port=self.config['port'], shutdown_trigger=shutdown_trigger_placeholder, ) async def kill(self) -> bool: return False async def unregister_listener( self, event_type: type, callback: typing.Callable[[platform_events.Event, MessagePlatformAdapter], None], ): return super().unregister_listener(event_type, callback)