Avatars for sliding sync DMs

src/service/rooms/state_accessor/mod.rs

@@ -9,6 +9,7 @@ use lru_cache::LruCache;
 use ruma::{
     events::{
         room::{
+            avatar::RoomAvatarEventContent,
             history_visibility::{HistoryVisibility, RoomHistoryVisibilityEventContent},
             member::{MembershipState, RoomMemberEventContent},
             name::RoomNameEventContent,
@@ -283,6 +284,17 @@ impl Service {
             })
     }
 
+    pub fn get_avatar(&self, room_id: &RoomId) -> Result<Option<RoomAvatarEventContent>> {
+        services()
+            .rooms
+            .state_accessor
+            .room_state_get(&room_id, &StateEventType::RoomAvatar, "")?
+            .map_or(Ok(None), |s| {
+                serde_json::from_str(s.content.get())
+                    .map_err(|_| Error::bad_database("Invalid room avatar event in database."))
+            })
+    }
+
     pub fn get_member(
         &self,
         room_id: &RoomId,