Re: How to disconnect client using Autobahn websocket server

[Rigaudie François]

hi rizwan,
one possibility is to implement a rpc on client side that will call the socket close() and trigger it from server side. but it is not the best thing to do, I agree, executing it from server directly would be better.
françois

Le 8 sept. 2012 23:20, "Rizwan" <djri...@gmail.com> a écrit :

Hi, i am using the example of autobahn websocket server in python.
now as a client in javascript, one can disconnect the socket using socket.close(), however if one wants to disconnect connected client from the server how can this be done??

[Tobias Oberstein]

Am 08.09.2012 23:20, schrieb Rizwan:
> Hi, i am using the example of autobahn websocket server in python.
> now as a client in javascript, one can disconnect the socket using
> socket.close(), however if one wants to disconnect connected client from
> the server how can this be done??

just call

def sendClose(self, code = None, reason = None)

available on WebSocketServerProtocol and WebSocketClientProtocol

will start closing handshake .. exactly as browser.

Cheers,
Tobias

[Keen]

It's hard to use autobahnPython for me , I don't konw how to use the pamas code and reason, I need a example. Sorry~~~ but thanks a lot!

在 2012年9月10日星期一UTC+8上午1时40分50秒，Tobias Oberstein写道：

[Kevin Helton]

Hi Tobias,

Can you elaborate a bit or maybe provide a simple example. I have a broadcast server with multiple possible clients and am looking to target specific connects to close based on a response from the client. Really, I'm trying to do a simple password(pin) authentication and close connections that do not have the proper password. Any help will be appreciated!

Kevin

[Tobias Oberstein]

Kevin,

not sure what you exactly a trying to do:

"response from client": the broadcast server does not receive responses, but just dispatches anything it receives to all currently connected clients.

Usually, a "response" is something a peer sends upon a "request" .. that would be a "Request/Response" pattern. You might have a look at the WAMP examples that come with AutobahnPython. Those provide "Remote Procedure Calls" (= Request/Response) and PubSub. They also show how to do authentication. And WAMP also allows you to target specific clients, since WAMP assign unique session IDs to clients (which is needed, at least when referring a session from a different session).

Of course you could reinvent parts of WAMP on your own .. however, I'd not recommend that, but instead first look if WAMP already provides what you need. If so, that'll much quicker for you, and you also profit from the work done on WAMP now and in the future.

/Tobias

[Kevin Helton]

Thanks Tobias, I'll take a look and give it a go!

[Tom Sheffler]

There is also a way to unceremoniously drop a connection:  it will look something like this:

class MyWebSocket(WebSocketServerProtocol):

  def unceremoniouslyKillClient(self):

    self.transport.loseConnection()

This doesn't shut down the websocket protocol, it just loses the tcp conneciton.