[jira] [Commented] (JAMES-3539) JMAP PushSubscription (web hooks) is not implemented

["Benoit Tellier (Jira)" <se...@james.apache.org>]

    [ https://issues.apache.org/jira/browse/JAMES-3539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17424003#comment-17424003 ] 

Benoit Tellier commented on JAMES-3539:
---------------------------------------

We (linagora) will end up eventually implementing PUSH notifications for our mobile application.

(IOS especially have harsh restrictions regarding background connections, using a push gateway is a best practice in android too - I'm not an expert here but [~datpham] did mention this wish.)

*Quick write up* regarding the path we would follow to implement this in James:

 - Dedicated (Cassandra) storage for push subsccription
 - Have a (group) JMAP listener reading the subscription and sending them to the registered URL if valid.

We can use reactor-netty as an HTTP client to be fully reactive.

RFC-8291 provides some crypto too... Tink provides helpers to do this easily: https://github.com/google/tink/blob/master/apps/webpush/src/main/java/com/google/crypto/tink/apps/webpush/WebPushHybridDecrypt.java 

https://www.mock-server.com/ for the tests...



> JMAP PushSubscription (web hooks) is not implemented
> ----------------------------------------------------
>
>                 Key: JAMES-3539
>                 URL: https://issues.apache.org/jira/browse/JAMES-3539
>             Project: James Server
>          Issue Type: Sub-task
>          Components: JMAP
>    Affects Versions: 3.6.0
>            Reporter: Benoit Tellier
>            Assignee: Antoine Duprat
>            Priority: Major
>
> https://jmap.io/spec-core.html#pushsubscription
> {code:java}
> Clients may create a PushSubscription to register a URL with the JMAP server. 
> The JMAP server will then make an HTTP POST request to this URL for each push notification it wishes to send to the client.
> {code}
> I can be used to group notifications with other apps, for instance in a groupware.
> This is not implemented so far.
> I read the RFCs, but have no opinion so far on the best way to implement this. Support for this is likely not needed but we could imagine accept contributions.



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