feat: discord adapter

pkg/core/bootutils/deps.py

@@ -26,7 +26,8 @@ required_deps = {
     "argon2": "argon2-cffi",
     "jwt": "pyjwt",
     "Crypto": "pycryptodome",
-    "lark_oapi": "lark-oapi"
+    "lark_oapi": "lark-oapi",
+    "discord": "discord.py"
 }
 
 

pkg/platform/manager.py

@@ -37,7 +37,7 @@ class PlatformManager:
     
     async def initialize(self):
 
-        from .sources import nakuru, aiocqhttp, qqbotpy, wecom, lark
+        from .sources import nakuru, aiocqhttp, qqbotpy, wecom, lark, discord
 
         async def on_friend_message(event: platform_events.FriendMessage, adapter: msadapter.MessageSourceAdapter):
 

pkg/platform/sources/discord.py

@@ -0,0 +1,258 @@
+from __future__ import annotations
+
+import discord
+
+import typing
+import asyncio
+import traceback
+import time
+import re
+import base64
+import uuid
+import json
+import datetime
+
+import aiohttp
+
+from .. import adapter
+from ...pipeline.longtext.strategies import forward
+from ...core import app
+from ..types import message as platform_message
+from ..types import events as platform_events
+from ..types import entities as platform_entities
+from ...utils import image
+
+
+class DiscordMessageConverter(adapter.MessageConverter):
+
+    @staticmethod
+    async def yiri2target(
+        message_chain: platform_message.MessageChain
+    ) -> typing.Tuple[str, typing.List[discord.File]]:
+        for ele in message_chain:
+            if isinstance(ele, platform_message.At):
+                message_chain.remove(ele)
+                break
+
+        text_string = ""
+        image_files = []
+
+        for ele in message_chain:
+            if isinstance(ele, platform_message.Image):
+                image_bytes = None
+
+                if ele.base64:
+                    image_bytes = base64.b64decode(ele.base64)
+                elif ele.url:
+                    async with aiohttp.ClientSession() as session:
+                        async with session.get(ele.url) as response:
+                            image_bytes = await response.read()
+                elif ele.path:
+                    with open(ele.path, "rb") as f:
+                        image_bytes = f.read()
+
+                image_files.append(discord.File(fp=image_bytes, filename=f"{uuid.uuid4()}.png"))
+            elif isinstance(ele, platform_message.Plain):
+                text_string += ele.text
+
+        return text_string, image_files
+
+    @staticmethod
+    async def target2yiri(
+        message: discord.Message
+    ) -> platform_message.MessageChain:
+        lb_msg_list = []
+
+        msg_create_time = datetime.datetime.fromtimestamp(
+            int(message.created_at.timestamp())
+        )
+
+        lb_msg_list.append(
+            platform_message.Source(id=message.id, time=msg_create_time)
+        )
+
+        element_list = []
+
+        def text_element_recur(text_ele: str) -> list[platform_message.MessageComponent]:
+            if text_ele == "":
+                return []
+
+            # <@1234567890>
+            # @everyone
+            # @here
+            at_pattern = re.compile(r"(@everyone|@here|<@[\d]+>)")
+            at_matches = at_pattern.findall(text_ele)
+            
+            if len(at_matches) > 0:
+                mid_at = at_matches[0]
+
+                text_split = text_ele.split(mid_at)
+
+                mid_at_component = []
+
+                if mid_at == "@everyone" or mid_at == "@here":
+                    mid_at_component.append(platform_message.AtAll())
+                else:
+                    mid_at_component.append(platform_message.At(target=mid_at[2:-1]))
+
+                return text_element_recur(text_split[0]) + \
+                    mid_at_component + \
+                    text_element_recur(text_split[1])
+            else:
+                return [platform_message.Plain(text=text_ele)]
+
+        
+        element_list.extend(text_element_recur(message.content))
+
+        # attachments
+        for attachment in message.attachments:
+            async with aiohttp.ClientSession(trust_env=True) as session:
+                async with session.get(attachment.url) as response:
+                    image_data = await response.read()
+                    image_base64 = base64.b64encode(image_data).decode("utf-8")
+                    image_format = response.headers["Content-Type"]
+                    element_list.append(platform_message.Image(base64=f"data:{image_format};base64,{image_base64}"))
+
+        return platform_message.MessageChain(element_list)
+
+
+class DiscordEventConverter(adapter.EventConverter):
+
+    @staticmethod
+    async def yiri2target(
+        event: platform_events.Event
+    ) -> discord.Message:
+        pass
+
+    @staticmethod
+    async def target2yiri(
+        event: discord.Message
+    ) -> platform_events.Event:
+        message_chain = await DiscordMessageConverter.target2yiri(event)
+
+        if type(event.channel) == discord.DMChannel:
+            return platform_events.FriendMessage(
+                sender=platform_entities.Friend(
+                    id=event.author.id,
+                    nickname=event.author.name,
+                    remark=event.channel.id,
+                ),
+                message_chain=message_chain,
+                time=event.created_at.timestamp(),
+                source_platform_object=event,
+            )
+        elif type(event.channel) == discord.TextChannel:
+            return platform_events.GroupMessage(
+                sender=platform_entities.GroupMember(
+                    id=event.author.id,
+                    member_name=event.author.name,
+                    permission=platform_entities.Permission.Member,
+                    group=platform_entities.Group(
+                        id=event.channel.id,
+                        name=event.channel.name,
+                        permission=platform_entities.Permission.Member,
+                    ),
+                    special_title="",
+                    join_timestamp=0,
+                    last_speak_timestamp=0,
+                    mute_time_remaining=0,
+                ),
+                message_chain=message_chain,
+                time=event.created_at.timestamp(),
+                source_platform_object=event,
+            )
+
+@adapter.adapter_class("discord")
+class DiscordMessageSourceAdapter(adapter.MessageSourceAdapter):
+
+    bot: discord.Client
+
+    bot_account_id: str  # 用于在流水线中识别at是否是本bot，直接以bot_name作为标识
+
+    config: dict
+
+    ap: app.Application
+
+    message_converter: DiscordMessageConverter = DiscordMessageConverter()
+    event_converter: DiscordEventConverter = DiscordEventConverter()
+
+    listeners: typing.Dict[
+        typing.Type[platform_events.Event],
+        typing.Callable[[platform_events.Event, adapter.MessageSourceAdapter], None],
+    ] = {}
+
+    def __init__(self, config: dict, ap: app.Application):
+        self.config = config
+        self.ap = ap
+
+        self.bot_account_id = self.config["client_id"]
+
+        adapter_self = self
+
+        class MyClient(discord.Client):
+
+            async def on_message(self: discord.Client, message: discord.Message):
+                if message.author.id == self.user.id or message.author.bot:
+                    return
+
+                lb_event = await adapter_self.event_converter.target2yiri(message)
+                await adapter_self.listeners[type(lb_event)](lb_event, adapter_self)
+
+        intents = discord.Intents.default()
+        intents.message_content = True
+
+        self.bot = MyClient(intents=intents, proxy=self.config["proxy"])
+        
+    async def send_message(
+        self, target_type: str, target_id: str, message: platform_message.MessageChain
+    ):
+        pass
+
+    async def reply_message(
+        self,
+        message_source: platform_events.MessageEvent,
+        message: platform_message.MessageChain,
+        quote_origin: bool = False,
+    ):
+        msg_to_send, image_files = await self.message_converter.yiri2target(message)
+        assert isinstance(message_source.source_platform_object, discord.Message)
+
+        args = {
+            "content": msg_to_send,
+        }
+
+        if len(image_files) > 0:
+            args["files"] = image_files
+
+        if quote_origin:
+            args["reference"] = message_source.source_platform_object
+
+        if message.has(platform_message.At):
+            args["mention_author"] = True
+
+        await message_source.source_platform_object.channel.send(**args)
+
+    async def is_muted(self, group_id: int) -> bool:
+        return False
+
+    def register_listener(
+        self,
+        event_type: typing.Type[platform_events.Event],
+        callback: typing.Callable[[platform_events.Event, adapter.MessageSourceAdapter], None],
+    ):
+        self.listeners[event_type] = callback
+
+    def unregister_listener(
+        self,
+        event_type: typing.Type[platform_events.Event],
+        callback: typing.Callable[[platform_events.Event, adapter.MessageSourceAdapter], None],
+    ):
+        self.listeners.pop(event_type)
+
+    async def run_async(self):
+        async with self.bot:
+            await self.bot.start(self.config["token"], reconnect=True)
+
+    async def kill(self) -> bool:
+        await self.bot.close()
+        return True

pkg/platform/types/events.py

@@ -72,6 +72,11 @@ class MessageEvent(Event):
     message_chain: platform_message.MessageChain
     """消息内容。"""
 
+    source_platform_object: typing.Optional[typing.Any] = None
+    """原消息平台对象。
+    供消息平台适配器开发者使用，如果回复用户时需要使用原消息事件对象的信息，
+    那么可以将其存到这个字段以供之后取出使用。"""
+
 
 class FriendMessage(MessageEvent):
     """好友消息。

requirements.txt

@@ -26,6 +26,7 @@ argon2-cffi
 pyjwt
 pycryptodome
 lark-oapi
+discord.py
 
 # indirect
 taskgroup==0.0.0a4