From 79a982e3efb63e372a0c743313fb6ebd1f11b5de Mon Sep 17 00:00:00 2001
From: Greg Heartsfield <scsibug@imap.cc>
Date: Sun, 21 Aug 2022 09:28:31 -0700
Subject: [PATCH] improvement: send NOTICE for too-large messages

---
 src/main.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index 0de8bca..9e208a3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -34,6 +34,7 @@ use tokio::sync::broadcast::{self, Receiver, Sender};
 use tokio::sync::mpsc;
 use tokio::sync::oneshot;
 use tokio_tungstenite::WebSocketStream;
+use tungstenite::error::CapacityError::MessageTooLong;
 use tungstenite::error::Error as WsError;
 use tungstenite::handshake;
 use tungstenite::protocol::Message;
@@ -476,6 +477,10 @@ async fn nostr_server(
                         // send responses automatically.
                         continue;
                     },
+		    Some(Err(WsError::Capacity(MessageTooLong{size, max_size}))) => {
+			ws_stream.send(make_notice_message(&format!("message too large ({} > {})",size, max_size))).await.ok();
+                        continue;
+		    },
                     None |
                     Some(Ok(Message::Close(_))) |
                     Some(Err(WsError::AlreadyClosed)) |