Looks* good.

On Fri, Oct 4, 2019 at 11:25 AM Fazlan Nazeem <[email protected]> wrote:

> Hi all,
>
> We are working on supporting JWT revocation for synapse gateway. Please
> note that the default token format for 3.0 synapse gateway is JWT.
>
> Please find the discussed design for this feature.
>
> [image: JWT.jpg]
>
> In summary, we will be storing the revoked token signatures against the
> expiry timestamp(timestamp is needed for cleanup) in AM_DB and these
> entries will be fetched to the gateway during the startup via a web app
> deployed in KM. This is similar to how we fetch key templates and blocking
> conditions during the startup via the throttle web app.
>
> When a token is being revoked after startup, an event will be put into a
> JMS topic or multiple JMS topics depending on how the gateways are
> subscribed to the topic(via JMS event publishers). When the JMS listener
> fetches this event, it will clear the gateway cache entry related to the
> token and also populate the in-memory revoke map.
>
> When a request is received to the gateway, it will be first validated
> against the cache and only if it is not in the cache the signature will be
> validated against the revoke map. We have decided not to validate against
> the invalid cache for this flow because the revoke map will anyway have all
> the invalid entries whereas the invalid cache will not always have all the
> entries.
>
> Both the database table and revoke map has the expiry timestamp stored in
> them to facilitate the cleanup process of expired revoked tokens. We are
> planning to clean both the database table and the revoke map via a timer
> task with a suitable interval to ensure they will not be growing
> continuously.
>
> Please let me know your suggestions.
> --
> Thanks & Regards,
>
> *Fazlan Nazeem | *Associate Technical Lead | WSO2 Inc
> Mobile : +94772338839 | [email protected]
>
>
>

-- 
*Bhathiya Jayasekara* | Technical Lead | WSO2 Inc.
(m) +94 71 547 8185  | (e) bhathiya-@t-wso2-d0t-com
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