WSO2消息代理-授权

Question

I am trying to implement an authorization mechanism on WSO2 Message Broker, but I am pretty new to WSO2 products. My goal is to implement MQTT Topic Authorization in the same manner it is implemented for JMS topics. Actually I am looking the code on the "andes" repository and "carbon-business-messaging" repository, and I would be very grateful if you can suggest me where to start. (that's a lot of code to look at)

What I want to do is to allow a particular user to publish/subscribe topics using the User Role permissions, so that even if someone connects to the Broker, he/she can't subscribe or publish without permission.

Answer 1

You can see how the Authentication is happening in MQTT from here .

You can look at the following method in ProtocolProcessor.java class. This is located in andes core.

processSubscribe(ServerChannel session, SubscribeMessage msg, String clientID, boolean cleanSession)

Also to get an idea about the how authorization Done in JMS messaging you can refer AndesAuthorizationHandler.java Class from here . This is located in carbon-business-messaging repository.