perf(wecom): add supports for images

libs/wecom_api/api.py

@@ -1,11 +1,14 @@
 from quart import request
 from .WXBizMsgCrypt3 import WXBizMsgCrypt
-
+import base64
+import binascii
 import httpx
 from quart import Quart
 import xml.etree.ElementTree as ET
 from typing import Callable, Dict, Any
 from .wecomevent import WecomEvent
+from pkg.platform.types import events as platform_events, message as platform_message
+import aiofiles
 
 
 class WecomClient():
@@ -42,7 +45,6 @@ class WecomClient():
             else:
                 raise Exception(f"未获取access token: {data}")
 
-
     async def get_users(self):
         if not self.check_access_token_for_contacts():
             self.access_token_for_contacts = await self.get_access_token(self.secret_for_contacts)
@@ -88,6 +90,30 @@ class WecomClient():
                 data = response.json()
                 if data['errcode'] != 0:
                     raise Exception("Failed to send message: "+str(data))
+
+    async def send_image(self,user_id:str,agent_id:int,media_id:str):
+        if not await self.check_access_token():
+            self.access_token = await self.get_access_token(self.secret)
+        url = self.base_url+'/media/upload?access_token='+self.access_token
+        async with httpx.AsyncClient() as client:
+            params = {
+                "touser" : user_id,
+                "toparty" : "",
+                "totag":"",
+                "agentid" : agent_id,
+                "msgtype" : "image",
+                "image" : {
+                    "media_id" : media_id,
+                },
+                "safe":0,
+                "enable_id_trans": 0,
+                "enable_duplicate_check": 0,
+                "duplicate_check_interval": 1800
+            }
+            response = await client.post(url,json=params)
+            data = response.json()
+            if data['errcode'] != 0:
+                raise Exception("Failed to send image: "+str(data))
             
     async def send_private_msg(self,user_id:str, agent_id:int,content:str):
         if not await self.check_access_token():
@@ -188,13 +214,92 @@ class WecomClient():
             "MsgId": int(root.find("MsgId").text) if root.find("MsgId") is not None else None,
             "AgentID": int(root.find("AgentID").text) if root.find("AgentID") is not None else None,
         }
-        return message_data
-
-
-
-
-            
-
-
+        if message_data["MsgType"] == "image":
+            message_data["MediaId"] = root.find("MediaId").text if root.find("MediaId") is not None else None
+            message_data["PicUrl"] = root.find("PicUrl").text if root.find("PicUrl") is not None else None
     
-    
+        return message_data
+    
+    @staticmethod
+    async def get_image_type(image_bytes: bytes) -> str:
+        """
+        通过图片的magic numbers判断图片类型
+        """
+        magic_numbers = {
+            b'\xFF\xD8\xFF': 'jpg',
+            b'\x89\x50\x4E\x47': 'png',
+            b'\x47\x49\x46': 'gif',
+            b'\x42\x4D': 'bmp',
+            b'\x00\x00\x01\x00': 'ico'
+        }
+    
+        for magic, ext in magic_numbers.items():
+            if image_bytes.startswith(magic):
+                return ext
+        return 'jpg'  # 默认返回jpg
+    
+
+    async def upload_to_work(self, image: platform_message.Image):
+        """
+        获取 media_id
+        """
+        if not await self.check_access_token():
+            self.access_token = await self.get_access_token(self.secret)
+
+        url = self.base_url + '/media/upload?access_token=' + self.access_token + '&type=file'
+        file_bytes = None
+        file_name = "uploaded_file.txt"
+
+        # 获取文件的二进制数据
+        if image.path:
+            async with aiofiles.open(image.path, 'rb') as f:
+                file_bytes = await f.read()
+                file_name = image.path.split('/')[-1]
+        elif image.url:
+            file_bytes = await self.download_image_to_bytes(image.url)
+            file_name = image.url.split('/')[-1]
+        elif image.base64:
+            try:
+                base64_data = image.base64
+                if ',' in base64_data:
+                    base64_data = base64_data.split(',', 1)[1]
+                padding = 4 - (len(base64_data) % 4) if len(base64_data) % 4 else 0
+                padded_base64 = base64_data + '=' * padding
+                file_bytes = base64.b64decode(padded_base64)
+            except binascii.Error as e:
+                raise ValueError(f"Invalid base64 string: {str(e)}")
+        else:
+            raise ValueError("image对象出错")
+
+        # 设置 multipart/form-data 格式的文件
+        boundary = "-------------------------acebdf13572468"
+        headers = {
+            'Content-Type': f'multipart/form-data; boundary={boundary}'
+        }
+        body = (
+            f"--{boundary}\r\n"
+            f"Content-Disposition: form-data; name=\"media\"; filename=\"{file_name}\"; filelength={len(file_bytes)}\r\n"
+            f"Content-Type: application/octet-stream\r\n\r\n"
+        ).encode('utf-8') + file_bytes + f"\r\n--{boundary}--\r\n".encode('utf-8')
+
+        # 上传文件
+        async with httpx.AsyncClient() as client:
+            response = await client.post(url, headers=headers, content=body)
+            data = response.json()
+            if data.get('errcode', 0) != 0:
+                raise Exception("failed to upload file")
+
+            return data.get('media_id')
+
+
+    async def download_image_to_bytes(self,url:str) -> bytes:
+        async with httpx.AsyncClient() as client:
+            response = await client.get(url)
+            response.raise_for_status()
+            return response.content
+
+    #进行media_id的获取
+    async def get_media_id(self, image: platform_message.Image):
+
+        media_id = await self.upload_to_work(image=image)
+        return media_id

libs/wecom_api/wecomevent.py

@@ -35,6 +35,13 @@ class WecomEvent(dict):
             str: 事件类型。
         """
         return self.get("MsgType", "")
+    
+    @property
+    def picurl(self) -> str:
+        """
+        图片链接
+        """
+        return self.get("PicUrl")
 
     @property
     def detail_type(self) -> str:

pkg/platform/sources/wecom.py

@@ -12,7 +12,6 @@ from pkg.platform.adapter import MessageSourceAdapter
 from pkg.platform.types import events as platform_events, message as platform_message
 from libs.wecom_api.wecomevent import WecomEvent
 from pkg.core import app
-
 from .. import adapter
 from ...pipeline.longtext.strategies import forward
 from ...core import app
@@ -20,24 +19,54 @@ from ..types import message as platform_message
 from ..types import events as platform_events
 from ..types import entities as platform_entities
 from ...command.errors import ParamNotEnoughError
-
+from ...utils import image
 
 class WecomMessageConverter(adapter.MessageConverter):
-    @staticmethod
-    async def yiri2target(message_chain:platform_message.MessageChain):
-        content=''
-        for msg in message_chain:
-            if type(msg) is platform_message.Plain:
-                content+=msg.text
-        
-        return content
-                
 
     @staticmethod
-    async def target2yiri(message:str,message_id:int = -1):
+    async def yiri2target(
+        message_chain: platform_message.MessageChain, bot: WecomClient
+    ):
+        content_list = []
+
+        [
+            {
+                "type": "text",
+                "content": "text",
+            },
+            {
+                "type": "image",
+                "media_id": "media_id",
+            }
+        ]
+
+        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())
+            platform_message.Source(id=message_id, time=datetime.datetime.now())
         )
 
         yiri_msg_list.append(platform_message.Plain(text=message))
@@ -45,31 +74,46 @@ class WecomMessageConverter(adapter.MessageConverter):
 
         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) -> WecomEvent:
-            content = await WecomMessageConverter.yiri2target(event.message_chain)
 
-            if type(event) is platform_events.GroupMessage:
-                    pass
-        
-            if type(event) is platform_events.FriendMessage:
-                payload = {
-                    "MsgType": "text",
-                    "Content": content,
-                    "FromUserName": event.sender.id,
-                    "ToUserName":  bot_account_id,
-                    "CreateTime": int(datetime.datetime.now().timestamp()),
-                    "AgentID": event.sender.nickname
-                }
+    @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):
         """
@@ -82,112 +126,133 @@ class WecomEventConverter:
             platform_events.FriendMessage: 转换后的 FriendMessage 对象。
         """
         # 转换消息链
-        yiri_chain = await WecomMessageConverter.target2yiri(
-            event.message, event.message_id
-        )
-
-        # 判断消息类型并进行转换
-        # if event.message_type == "private": 默认消息都是从好友发出
-
-        friend = platform_entities.Friend(
-            id=event.user_id,  
-            nickname=str(event.agent_id),   
-            remark="",         
-        )
-        
-        return platform_events.FriendMessage(
-                sender=friend,
-                message_chain=yiri_chain,
-                time=event.timestamp
+        if event.type == "text":
+            yiri_chain = await WecomMessageConverter.target2yiri(
+                event.message, event.message_id
+            )
+
+            friend = platform_entities.Friend(
+                id=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=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
             )
 
-        
 
 @adapter.adapter_class("wecom")
 class WecomeAdapter(adapter.MessageSourceAdapter):
 
-    bot:WecomClient    
-    ap:app.Application
-    bot_account_id:str
-    message_converter:WecomMessageConverter = WecomMessageConverter()
-    event_converter:WecomEventConverter = WecomEventConverter()
-    config:dict
-    ap:app.Application
+    bot: WecomClient
+    ap: app.Application
+    bot_account_id: str
+    message_converter: WecomMessageConverter = WecomMessageConverter()
+    event_converter: WecomEventConverter = WecomEventConverter()
+    config: dict
+    ap: app.Application
 
-    def __init__(self, config: dict, ap:app.Application):
+    def __init__(self, config: dict, ap: app.Application):
         self.config = config
-        #这里需要对config里的内容换成企业微信的config。是config:corpid,token......
+
         self.ap = ap
-        
-        required_keys = ["corpid","secret","token","EncodingAESKey","contacts_secret"]
+
+        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']
+            corpid=config["corpid"],
+            secret=config["secret"],
+            token=config["token"],
+            EncodingAESKey=config["EncodingAESKey"],
+            contacts_secret=config["contacts_secret"],
         )
-        
-    async def reply_message(self,message_source:platform_events.MessageEvent,message:platform_message.MessageChain,
-            quote_origin:bool=False,
+
+    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)
-        Wecom_msg = await WecomMessageConverter.yiri2target(message)
-        # message_converter传回一个消息str
 
-        user_id = Wecom_event.user_id
-        agent_id = Wecom_event.agent_id
-        return await self.bot.send_private_msg(user_id=user_id,agent_id=agent_id,content=Wecom_msg)
+        Wecom_event = await WecomEventConverter.yiri2target(
+            message_source, self.bot_account_id, self.bot
+        )
+        content_list = await WecomMessageConverter.yiri2target(message, self.bot)
 
-    async def send_message(self, target_type: str, target_id: str, message: platform_message.MessageChain):
+        for content in content_list:
+            if content["type"] == "text":
+                await self.bot.send_private_msg(Wecom_event.user_id, Wecom_event.agent_id, content["content"])
+            elif content["type"] == "image":
+                await self.bot.send_image(Wecom_event.user_id, Wecom_event.agent_id, content["media_id"])
+
+    async def send_message(
+        self, target_type: str, target_id: str, message: platform_message.MessageChain
+    ):
         pass
 
-
-
     def register_listener(
-            self,
-            event_type:typing.Type[platform_events.Event],
-            callback:typing.Callable[[platform_events.Event,adapter.MessageSourceAdapter],None],
-
+        self,
+        event_type: typing.Type[platform_events.Event],
+        callback: typing.Callable[
+            [platform_events.Event, adapter.MessageSourceAdapter], None
+        ],
     ):
-        async def on_message(event:WecomEvent):
+        async def on_message(event: WecomEvent):
             self.bot_account_id = event.receiver_id
             try:
-                return await callback(await self.event_converter.target2yiri(event),self)
+                return await callback(
+                    await self.event_converter.target2yiri(event), self
+                )
             except:
                 traceback.print_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)
+        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, MessageSourceAdapter], None]):
+
+    async def unregister_listener(
+        self,
+        event_type: type,
+        callback: typing.Callable[[platform_events.Event, MessageSourceAdapter], None],
+    ):
         return super().unregister_listener(event_type, callback)
-
- 
-
-
-
-
-
-
-
-
-
-
-
-

pkg/utils/image.py

@@ -7,6 +7,31 @@ import ssl
 import aiohttp
 import PIL.Image
 
+async def get_wecom_image_base64(pic_url: str) -> tuple[str, str]:
+    """
+    下载企业微信图片并转换为 base64
+    :param pic_url: 企业微信图片URL
+    :return: (base64_str, image_format)
+    """
+    async with aiohttp.ClientSession() as session:
+        async with session.get(pic_url) as response:
+            if response.status != 200:
+                raise Exception(f"Failed to download image: {response.status}")
+            
+            # 读取图片数据
+            image_data = await response.read()
+            
+            # 获取图片格式
+            content_type = response.headers.get('Content-Type', '')
+            image_format = content_type.split('/')[-1]  # 例如 'image/jpeg' -> 'jpeg'
+            
+            # 转换为 base64
+            import base64
+            image_base64 = base64.b64encode(image_data).decode('utf-8')
+            
+            return image_base64, image_format
+
+
 
 def get_qq_image_downloadable_url(image_url: str) -> tuple[str, dict]:
     """获取QQ图片的下载链接"""