use single global function for server name local and user local checking

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/utils/mod.rs

@@ -1,6 +1,8 @@
 pub(crate) mod clap;
 pub(crate) mod debug;
 pub(crate) mod error;
+pub(crate) mod server_name;
+pub(crate) mod user_id;
 
 use std::{
 	cmp,

src/utils/server_name.rs

@@ -0,0 +1,8 @@
+//! utilities for doing/checking things with ServerName's/server_name's
+
+use ruma::ServerName;
+
+use crate::services;
+
+/// checks if `server_name` is ours
+pub(crate) fn server_is_ours(server_name: &ServerName) -> bool { server_name == services().globals.config.server_name }

src/utils/user_id.rs

@@ -0,0 +1,8 @@
+//! utilities for doing things with UserId's / usernames
+
+use ruma::UserId;
+
+use crate::services;
+
+/// checks if `user_id` is local to us via server_name comparison
+pub(crate) fn user_is_local(user_id: &UserId) -> bool { user_id.server_name() == services().globals.config.server_name }