split api/client/room

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

src/api/client/room/event.rs

@@ -0,0 +1,38 @@
+use axum::extract::State;
+use conduit::{err, Result};
+use futures::TryFutureExt;
+use ruma::api::client::room::get_room_event;
+
+use crate::Ruma;
+
+/// # `GET /_matrix/client/r0/rooms/{roomId}/event/{eventId}`
+///
+/// Gets a single event.
+///
+/// - You have to currently be joined to the room (TODO: Respect history
+///   visibility)
+pub(crate) async fn get_room_event_route(
+	State(services): State<crate::State>, ref body: Ruma<get_room_event::v3::Request>,
+) -> Result<get_room_event::v3::Response> {
+	Ok(get_room_event::v3::Response {
+		event: services
+			.rooms
+			.timeline
+			.get_pdu_owned(&body.event_id)
+			.map_err(|_| err!(Request(NotFound("Event {} not found.", &body.event_id))))
+			.and_then(|event| async move {
+				services
+					.rooms
+					.state_accessor
+					.user_can_see_event(body.sender_user(), &event.room_id, &body.event_id)
+					.await
+					.then_some(event)
+					.ok_or_else(|| err!(Request(Forbidden("You don't have permission to view this event."))))
+			})
+			.map_ok(|mut event| {
+				event.add_age().ok();
+				event.to_room_event()
+			})
+			.await?,
+	})
+}