crypto: Log when we receive room keys

matrix_sdk_crypto/src/key_request.rs

@@ -664,6 +664,15 @@ impl KeyRequestMachine {
                 Some(session)
             };
 
+            if let Some(s) = &session {
+                info!(
+                    "Received a forwarded room key from {} for room {} with session id {}",
+                    event.sender,
+                    s.room_id(),
+                    s.session_id()
+                );
+            }
+
             Ok((
                 Some(AnyToDeviceEvent::ForwardedRoomKey(event.clone())),
                 session,

matrix_sdk_crypto/src/machine.rs

@@ -598,6 +598,13 @@ impl OlmMachine {
                     &event.content.room_id,
                     session_key,
                 )?;
+
+                info!(
+                    "Received a new room key from {} for room {} with session id {}",
+                    event.sender,
+                    event.content.room_id,
+                    session.session_id()
+                );
                 let event = AnyToDeviceEvent::RoomKey(event.clone());
                 Ok((Some(event), Some(session)))
             }