Add CORS

src/main.rs

@@ -1,3 +1,4 @@
+use actix_cors::Cors;
 use actix_web::{App, HttpResponse, HttpServer, Responder, web};
 use clap::Parser;
 use env_logger::Env;
@@ -5,7 +6,7 @@ use env_logger::Env;
 use sea_battle_backend::data::{GameRules, PlayConfiguration};
 
 /// Simple sea battle server
-#[derive(Parser, Debug)]
+#[derive(Parser, Debug, Clone)]
 #[clap(author, version, about, long_about = None)]
 struct Args {
     /// The address this server will listen to
@@ -43,10 +44,20 @@ async fn main() -> std::io::Result<()> {
     env_logger::Builder::from_env(Env::default().default_filter_or("info")).init();
 
     let args: Args = Args::parse();
+    let args_clone = args.clone();
 
+    HttpServer::new(move || {
+
+        let mut cors = Cors::default();
+        match args_clone.cors.as_deref() {
+            Some("*") => cors = cors.allow_any_origin(),
+            Some(orig) => cors = cors.allowed_origin(orig),
+            None => {}
+        }
 
-    HttpServer::new(|| {
         App::new()
+            .wrap(cors)
+
             .route("/bot/config", web::get().to(bot_configuration))
 
             .route("/random/config", web::get().to(multi_players_config))