rename api::client_server to api::client

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

src/api/client/space.rs

@@ -0,0 +1,56 @@
+use std::str::FromStr;
+
+use ruma::{
+	api::client::{error::ErrorKind, space::get_hierarchy},
+	uint, UInt,
+};
+
+use crate::{service::rooms::spaces::PagnationToken, services, Error, Result, Ruma};
+
+/// # `GET /_matrix/client/v1/rooms/{room_id}/hierarchy`
+///
+/// Paginates over the space tree in a depth-first manner to locate child rooms
+/// of a given space.
+pub(crate) async fn get_hierarchy_route(body: Ruma<get_hierarchy::v1::Request>) -> Result<get_hierarchy::v1::Response> {
+	let sender_user = body.sender_user.as_ref().expect("user is authenticated");
+
+	let limit: usize = body
+		.limit
+		.unwrap_or_else(|| uint!(10))
+		.try_into()
+		.unwrap_or(10)
+		.min(100);
+
+	let max_depth = body
+		.max_depth
+		.unwrap_or_else(|| UInt::from(3_u32))
+		.min(UInt::from(10_u32));
+
+	let key = body
+		.from
+		.as_ref()
+		.and_then(|s| PagnationToken::from_str(s).ok());
+
+	// Should prevent unexpeded behaviour in (bad) clients
+	if let Some(ref token) = key {
+		if token.suggested_only != body.suggested_only || token.max_depth != max_depth {
+			return Err(Error::BadRequest(
+				ErrorKind::InvalidParam,
+				"suggested_only and max_depth cannot change on paginated requests",
+			));
+		}
+	}
+
+	services()
+		.rooms
+		.spaces
+		.get_client_hierarchy(
+			sender_user,
+			&body.room_id,
+			limit,
+			key.map_or(0, |token| token.skip.try_into().unwrap_or(0)),
+			max_depth.try_into().unwrap_or(3),
+			body.suggested_only,
+		)
+		.await
+}