Matrix currently has a significant moderation loophole, thanks to
invites. Right now, anyone can invite anyone to a room - and clients
like NeoChat will gladly display these rooms to them and even give you
a notification.
However, this creates a pretty easy attack since room names and avatars
are arbitrary and this is a known vector of harassment in the Matrix
community. There's currently no tools to block this server-side, so
let's try to improve the situation where we can.
This adds a new setting to the Security page, wherein it allows you to
block invites from people you don't share a room with. This prevents the
notification from appearing and NeoChat will attempt to leave the room
immediately.
Since this depends on MSC 2666 - a currently unstable feature - the
server may not support it and NeoChat will disable the setting in this
case.
Update the user model so it also sorts by power level and update how we initialize the model to improve performance.
The following is also changed:
- Store a single `UserListModel` in `RoomManager` and use it for everything, this means we don't create extra models (incluiding the long initialisation for each in big rooms)
- By using the single model once it has loaded the users of the new room opening and closing the draw now happens instantly (previously the model would have to be loaded every time the drawer was opened).
- To stop the initial loading and room change of Neochat slowing down (as the `UserListModel` would be loaded before the `TimelineView` is shown) the initialisation of the model is delayed until the `TimelineView` has loaded. This prioritises showing some messages in the timeline over populating the model so in large rooms the user list will initially be blank, but this keeps the initial load snappier.
Create a list model for read markers. The primary reason is to stop `RoomMembers` being accessed after their state event is deleted. With this the read marker doesn't pass and `RoomMember` objects to qml.
- move the logic for remembering local filenames from
messagecontentmodel to neochatroom
- use it also when maximized and in context menu opening, to stop
re-downloading
- make onFileTransferCompleted signal connection one-shot (stops memory
leak)
- fix them vanishing after "opening" a file (they get downloaded to
/tmp/ without extension, which caused them to lose preview)
- make all text/plain mimetype files preview
- don't show them in Replies (in consistency with media components)
- Fix size and duration not showing in MimeComponents in replies
- Display Itinerary in replies as MimeComponent (in consistency with media
components)
Make sure that the Author in the content model is only ever updated int he following circumstacnes:
- The member updates their displayname or avatar
- A previously hidden author line is shown
This is done by only doing a full reset on initialisation or when a previously hidden author is shown. The rest of the time we only reset the other content in the message, i.e. everything below the author line.
Fix the InlineMessages for the room upgrades in RoomSettings, they should show even if we aren't currently in the room. Resolve resource can join the predecessor/sucessor if required.
Closesnetwork/neochat#618
