webSockets authentication

Hello,

i have tried to use webSockets to implement some push/pull scenarios on the default notification store:

/sap/opu/odata/iwfnd/notificationstore/ .

The Gateway documentation is http://help.sap.com/saphelp_gateway20sp07/helpdata/en/94/1d2a44914342789a7a315a3ebb4a79/content.htm not rich in content..

Now i know, there is no way to make a authentication with cookies or headers.....

Socket.io solved this problem with a workaround: authenticate the user with the first message and save the isAuthenticated to the websocket connection id.

Is there an similar undocumented approach for the gateway available?

thanks and regards
Benedikt