feat(presence): add granular allow configuration

src/api/client_server/presence.rs

@@ -11,6 +11,13 @@ use std::time::Duration;
 pub async fn set_presence_route(
     body: Ruma<set_presence::v3::Request>,
 ) -> Result<set_presence::v3::Response> {
+    if !services().globals.allow_local_presence() {
+        return Err(Error::BadRequest(
+            ErrorKind::Forbidden,
+            "Presence is disabled on this server",
+        ));
+    }
+
     let sender_user = body.sender_user.as_ref().expect("user is authenticated");
     for room_id in services().rooms.state_cache.rooms_joined(sender_user) {
         let room_id = room_id?;
@@ -36,6 +43,13 @@ pub async fn set_presence_route(
 pub async fn get_presence_route(
     body: Ruma<get_presence::v3::Request>,
 ) -> Result<get_presence::v3::Response> {
+    if !services().globals.allow_local_presence() {
+        return Err(Error::BadRequest(
+            ErrorKind::Forbidden,
+            "Presence is disabled on this server",
+        ));
+    }
+
     let sender_user = body.sender_user.as_ref().expect("user is authenticated");
 
     let mut presence_event = None;