From 8cbab9495523992090251f950f7a0bd9afdb531c Mon Sep 17 00:00:00 2001
From: Toshit Chawda <r58playz@gmail.com>
Date: Thu, 1 Aug 2024 15:59:29 -0700
Subject: [PATCH] don't send info packet if downgraded

---
 wisp/src/lib.rs    | 23 +++++++++++++----------
 wisp/src/stream.rs |  2 +-
 2 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/wisp/src/lib.rs b/wisp/src/lib.rs
index 928bfd8..8d54b3a 100644
--- a/wisp/src/lib.rs
+++ b/wisp/src/lib.rs
@@ -763,17 +763,20 @@ impl ClientMux {
 			let (supported_extensions, extra_packet, downgraded) =
 				if let Some(builders) = extension_builders {
 					let x = maybe_wisp_v2(&mut read, &write, builders).await?;
-					write
-						.write_frame(
-							Packet::new_info(
-								builders
-									.iter()
-									.map(|x| x.build_to_extension(Role::Client))
-									.collect(),
+					// if not downgraded
+					if !x.2 {
+						write
+							.write_frame(
+								Packet::new_info(
+									builders
+										.iter()
+										.map(|x| x.build_to_extension(Role::Client))
+										.collect(),
+								)
+								.into(),
 							)
-							.into(),
-						)
-						.await?;
+							.await?;
+					}
 					x
 				} else {
 					(Vec::new(), None, true)
diff --git a/wisp/src/stream.rs b/wisp/src/stream.rs
index 100926f..7233f8c 100644
--- a/wisp/src/stream.rs
+++ b/wisp/src/stream.rs
@@ -215,7 +215,7 @@ impl MuxStreamWrite {
 		))
 	}
 
-	/// Turn the write half into one that implements futures `Sink`, consuming it. 
+	/// Turn the write half into one that implements futures `Sink`, consuming it.
 	pub fn into_sink(self) -> MuxStreamIoSink {
 		MuxStreamIoSink {
 			tx: self.into_inner_sink(),