[Standards] MUC Mention Notifications

Andrzej Wojcik andrzej.wojcik at tigase.net
Sat Dec 19 15:41:59 UTC 2020


Hi all,

> To enable this feature, I've opted for a configuration setting in the MUC.
> 
> Apparently Tigase already has a similar feature to this protoXEP and relies on letting the user opt-in when registering a nickname with the MUC.
> 
> Maybe someone from Tigase can comment on the particulars of that. My understanding is that this necessitates the ability to self-register in a MUC, which IMO adds a hurdle to adoption of this feature.

Our approach was designed to solve MUC issue on the iOS based device where XMPP connection cannot be kept alive while in the background.

The idea was to enable MUC room to send groupchat messages (any message, not just mentions) to the user even if he is offline. 
Additionally with nickname registration, we were able to present offline users but subscribed with offline notifications as away in the rooms.
That also allowed us to block nickname from being used in this room by anyone else and did not require any modification on the senders client side as the room was forwarding all messages and thanks to the logic on users local server push notifications to the users client were generated.

In the proposed protoXEP <reference/> element contains real bare JID of the user affiliated with the room, which is available, if I'm correct, only in non-anonymous rooms. In semi-anonymous it may not be available. Due to that it restricts usage of the protoXEP only to the cases in which bare jids of users in the room are known to the occupants.

Additionally I'm not sure if affiliation of a user with a room is enough for sending notifications as nickname used to mention someone could be already taken by someone else (if affiliation will not block nickname from being reuse and AFAIR it does not).

Regards,
Andrzej Wójcik

XMPP: andrzej.wojcik at tigase.org
Email: andrzej.wojcik at tigase.net

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