Receiving invites from blocked users

[Hywan]

Description

Imagine the following scenario:

• user A creates room R1
• user A invites user B in room R1
• user B receives a pushed notification from user A
• user B declines and blocks user A
• user A creates room R2
• user A invites user B in room R2
• user B receives a pushed notification from user A

I guess this is wrong. user B should not receive a pushed notification from user A if user B has been blocked by user A.

The Matrix Rust SDK is trying to prevent that with matrix-org/matrix-rust-sdk#5081, but I suspect the homeserver should also filter that out.

Is it a spec issue? Is it a homeserver missing feature? A regression? A client-side problem only? Thoughts?

Steps to reproduce

See my previous scenario above.

Homeserver

matrix.org

Synapse Version

1.130.0 (b=matrix-org-hotfixes-priv,f6cffa1b29)

Installation Method

I don't know

Database

Workers

Single process

Platform

Configuration

Relevant log output

-

Anything else that would be useful to know?

[MadLittleMods]

Related issues:

• Sliding Sync - invites from ignored user still coming #18209
• Ignored users in /sync only returned with a delay after ignoring #9783

[MadLittleMods]

@Hywan Your issue mentions push notifications vs coming down sync which is why I kept it open before. Do you actually mean sync (which sync API in that case?) or push notifications from the server?

[Hywan]

You're right, it's about push notifications. I'm reopening the issue. Thanks for checking.