registry: implement OPTIONS for cors requests

2 files changed, 9 insertions, 2 deletions

diff --git a/server/registry/src/list.rs b/server/registry/src/list.rs
index 05c2eeab..56277db5 100644
--- a/server/registry/src/list.rs
+++ b/server/registry/src/list.rs
@@ -21,6 +21,7 @@ use hurrycurry_protocol::registry::Entry;
 use rocket::{
     Either, Request, State, get,
     http::{Header, MediaType},
+    options,
     request::{self, FromRequest, Outcome},
     response::{
         self, Responder,
@@ -44,6 +45,11 @@ pub(super) async fn r_list(
     })
 }
 
+#[options("/v1/list")]
+pub(super) async fn r_list_options() -> Cors<()> {
+    Cors(())
+}
+
 pub(super) fn generate_json_list(entries: &[Entry]) -> Result<Arc<str>> {
     Ok(serde_json::to_string(&entries)?.into())
 }
@@ -122,6 +128,7 @@ impl<'r, T: Responder<'r, 'static>> Responder<'r, 'static> for Cors<T> {
     fn respond_to(self, req: &'r Request<'_>) -> response::Result<'static> {
         let mut b = self.0.respond_to(req)?;
         b.set_header(Header::new("access-control-allow-origin", "*"));
+        b.set_header(Header::new("access-control-allow-methods", "GET, OPTIONS"));
         Ok(b)
     }
 }
diff --git a/server/registry/src/main.rs b/server/registry/src/main.rs
index 3cd252d9..924cbe24 100644
--- a/server/registry/src/main.rs
+++ b/server/registry/src/main.rs
@@ -21,7 +21,7 @@ pub mod list;
 pub mod lobby;
 pub mod register;
 
-use crate::conn_test::prune_connect_cache_task;
+use crate::{conn_test::prune_connect_cache_task, list::r_list_options};
 use hurrycurry_protocol::registry::Entry;
 use list::{generate_html_list, generate_json_list, r_list};
 use lobby::lobby_wrapper;
@@ -78,7 +78,7 @@ fn main() {
                     res.set_header(Header::new("server", "hurrycurry-registry"));
                     Box::pin(async {})
                 }))
-                .mount("/", routes![r_index, r_list, r_register])
+                .mount("/", routes![r_index, r_list, r_list_options, r_register])
                 .ignite()
                 .await
                 .unwrap()