split api/client/room

Signed-off-by: Jason Volk <jason@zemos.net>

src/api/client/room/aliases.rs

@@ -0,0 +1,40 @@
+use axum::extract::State;
+use conduit::{Error, Result};
+use futures::StreamExt;
+use ruma::api::client::{error::ErrorKind, room::aliases};
+
+use crate::Ruma;
+
+/// # `GET /_matrix/client/r0/rooms/{roomId}/aliases`
+///
+/// Lists all aliases of the room.
+///
+/// - Only users joined to the room are allowed to call this, or if
+///   `history_visibility` is world readable in the room
+pub(crate) async fn get_room_aliases_route(
+	State(services): State<crate::State>, body: Ruma<aliases::v3::Request>,
+) -> Result<aliases::v3::Response> {
+	let sender_user = body.sender_user.as_ref().expect("user is authenticated");
+
+	if !services
+		.rooms
+		.state_accessor
+		.user_can_see_state_events(sender_user, &body.room_id)
+		.await
+	{
+		return Err(Error::BadRequest(
+			ErrorKind::forbidden(),
+			"You don't have permission to view this room.",
+		));
+	}
+
+	Ok(aliases::v3::Response {
+		aliases: services
+			.rooms
+			.alias
+			.local_aliases_for_room(&body.room_id)
+			.map(ToOwned::to_owned)
+			.collect()
+			.await,
+	})
+}