Hi, Message broker requires authorization model to access control of resources like Topics/Queues based on user groups . This is to provide the initial design for $Subject. Example use case would be as follows. We have three user groups ( roles) A , B and manager and two topics T1 and T2. We need to restrict users in group as below.
1. T1 can be subscribed by only A and publish by only B 2. T2 can be subscribed by only B and publish by only A 3. Manager users can subscribe and publish to any topic but only subscribe queue. Following entities can be identified. *User groups:* A ,B and manager *Resources *: T1 and T2 *Resource Groups *: Topic, Queue *Actions*: subscribe, publish,view etc. *Permission*: resource+actions We can represent the permissions using binary form mappings with resource and user group. These permissions can be defined per resource or globally as well. *Per Resource* Resource User Group Actions Permission publish subscribe T1 A 0 1 01 T2 B 1 0 10 *Global Permission* Resource Type User Group Actions Permission publish subscribe Topic admin 1 1 11 Queue admin 1 0 10 Permission will be stored in the database similarly as of [1]. Following figure shows the proposed implementation for $subject. Connection handler can fetch the mb resource permissions mappings from database and user groups information from underlying user store manager. Authorized users can add permissions to groups using permission api. Each resource can have own way of handling permission. As an example in hierarchical topic scenario, if given user group has permission to top level topic, will be granted the permission to lower level topic structure as well. This is the initial design for permission model and We will schedule a design review to further discussion .Your suggestions are highly appreciated! [1] [Architecture] [APIM][C5] API Manager entities(APIs/Applications/Docs etc..) permission model and group sharing. Thanks, Waruna -- Regards, Waruna Lakshitha Jayaweera Senior Software Engineer WSO2 Inc; http://wso2.com phone: +94713255198 <+94%2071%20325%205198> http://waruapz.blogspot.com/
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