企业微信群机器人-发送图片消息

Instructions

Implementation Reference

• mcp_notify/wework.py:41-58 (handler)

  The handler function for the 'wework_send_image' MCP tool. It downloads an image from a URL, converts it to base64, computes its MD5 hash, and sends it to a WeWork group robot via webhook.

  @mcp.tool(
      title="企业微信群机器人-发送图片消息",
      description="通过企业微信群机器人发送图片消息",
  )
  def wework_send_image(
      url: str = Field(description="图片url"),
      bot_key: str = FIELD_BOT_KEY,
  ):
      res = requests.get(url, timeout=120)
      res.raise_for_status()
      b64str = base64.b64encode(res.content).decode()
      md5str = hashlib.md5(res.content).hexdigest()
      res = requests.post(
          f"{WEWORK_BASE_URL}/cgi-bin/webhook/send?key={bot_key or WEWORK_BOT_KEY}",
          json={"msgtype": "image", "image": {"base64": b64str, "md5": md5str}},
          timeout=120,
      )
      return res.json()

• mcp_notify/wework.py:45-47 (schema)

  Input schema for wework_send_image: takes a URL string for the image and an optional bot_key (defaulting from environment variable).

  def wework_send_image(
      url: str = Field(description="图片url"),
      bot_key: str = FIELD_BOT_KEY,

• mcp_notify/wework.py:17-48 (handler)

  Helper field definition reused across WeWork bot tools, providing the bot_key parameter schema with default from env.

  FIELD_BOT_KEY = Field("", description="企业微信群机器人key，uuid格式，默认从环境变量获取")
  FIELD_TO_USER = Field("", description="接收消息的成员ID，多个用`|`分隔，为`@all`时向该企业应用全部成员发送，默认从环境变量获取")
  
  
  def add_tools(mcp: FastMCP, logger=None):
  
      @mcp.tool(
          title="企业微信群机器人-发送文本消息",
          description="通过企业微信群机器人发送文本或Markdown消息",
      )
      def wework_send_text(
          text: str = Field(description="消息内容，长度限制: (text: 2048个字节, markdown_v2: 4096个字节)"),
          msgtype: str = Field("text", description="内容类型，仅支持: text/markdown_v2"),
          bot_key: str = FIELD_BOT_KEY,
      ):
          if msgtype == "markdown":
              msgtype = "markdown_v2"
          res = requests.post(
              f"{WEWORK_BASE_URL}/cgi-bin/webhook/send?key={bot_key or WEWORK_BOT_KEY}",
              json={"msgtype": msgtype, msgtype: {"content": text}},
          )
          return res.json()
  
  
      @mcp.tool(
          title="企业微信群机器人-发送图片消息",
          description="通过企业微信群机器人发送图片消息",
      )
      def wework_send_image(
          url: str = Field(description="图片url"),
          bot_key: str = FIELD_BOT_KEY,
      ):

• mcp_notify/wework.py:41-44 (registration)

  Registration of the 'wework_send_image' tool via the @mcp.tool decorator.

  @mcp.tool(
      title="企业微信群机器人-发送图片消息",
      description="通过企业微信群机器人发送图片消息",
  )

• mcp_notify/wework.py:21-23 (registration)

  The add_tools function is called from __init__.py to register all WeWork tools on the MCP server.

  def add_tools(mcp: FastMCP, logger=None):
  
      @mcp.tool(