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Sending message from server to client when web socket is opened.

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3/5
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1-2 天
新手友好度
45/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
python

调研方向

Start with the extended chat example and trace ChatWebSocketHandler.opened(), including the direct send and the websocket-broadcast publication. Check how the WebSocketPlugin pool handles a newly opened connection; done means a client receives the initial server message without the socket being terminated.

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描述

Gang:

I'm working with the extended chat example (works great out of the box), and trying to send a message from the server to the client when the web socket is initially opened:

    class ChatWebSocketHandler(WebSocket):
      def opened(self):
        cherrypy.engine.publish('add-client', self.username, self)
        self.send("Hello, World!")

However, this causes the web socket to be terminated. I've also tried publishing the message:

    class ChatWebSocketHandler(WebSocket):
      def opened(self):
        cherrypy.engine.publish('add-client', self.username, self)
        cherrypy.engine.publish("websocket-broadcast", "Hello, World!")

... which doesn't terminate the web socket, but doesn't send the message to the newly-connected client either (I assume this is because the broadcast is going out before the handler has been transferred to the WebSocketPlugin pool).

I'm looking to use web sockets for purely one-way publishing of a data feed from server to client(s), so this seems like a pretty basic use-case. What am I missing?

Thanks in advance,
Tim

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  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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