Changing to post rate limit.

crates/websocket/src/chat_server.rs

@@ -492,7 +492,7 @@ impl ChatServer {
         let user_operation = UserOperation::from_str(op)?;
         let fut = (message_handler)(context, msg.id, user_operation.clone(), data);
         match user_operation {
-          UserOperation::GetCaptcha => rate_limiter.image().wrap(ip, fut).await,
+          UserOperation::GetCaptcha => rate_limiter.post().wrap(ip, fut).await,
           _ => rate_limiter.message().wrap(ip, fut).await,
         }
       }

src/api_routes.rs

@@ -159,7 +159,7 @@ pub fn config(cfg: &mut web::ServiceConfig, rate_limit: &RateLimit) {
       .service(
         // Handle captcha separately
         web::resource("/user/get_captcha")
-          .wrap(rate_limit.image())
+          .wrap(rate_limit.post())
           .route(web::get().to(route_get::<GetCaptcha>)),
       )
       // User actions