Add API endpoint for retrieving config.json (without any secure access details)

rc_society/src/api/config.rs

@@ -0,0 +1,28 @@
+use actix_web::{HttpResponse, Responder, get, web::Query, http::header::{ContentDisposition, ContentType}};
+
+static JSON_DATA: std::sync::OnceLock<String> = std::sync::OnceLock::new();
+
+pub(super) fn init(config: &dyn oj_rc_core::ConfigProvider<()>) {
+    JSON_DATA.get_or_init(|| config.redacted_json());
+}
+
+#[derive(serde::Deserialize)]
+struct ConfigQuery {
+    #[serde(default)]
+    pub download: bool,
+}
+
+#[get("/api/v1/config.json")]
+pub async fn get(query: Query<ConfigQuery>) -> impl Responder {
+    let data = JSON_DATA.get().expect("Config JSON init failure").to_owned();
+    if query.download {
+        HttpResponse::Ok()
+            .insert_header(ContentDisposition::attachment("config.json"))
+            .insert_header(ContentType::json())
+            .body(data)
+    } else {
+        HttpResponse::Ok()
+            .insert_header(ContentType::json())
+            .body(data)
+    }
+}

rc_society/src/api/mod.rs

@@ -1 +1,6 @@
 pub mod garage;
+pub mod config;
+
+pub fn init(config: &dyn oj_rc_core::ConfigProvider<()>) {
+    config::init(config);
+}