From dd979652c29e857fc4bc86742025a10d340046a5 Mon Sep 17 00:00:00 2001
From: Juliusz Chroboczek <jch@irif.fr>
Date: Sun, 11 Aug 2024 17:38:55 +0200
Subject: [PATCH] Handle cancelled file transfer in initial callback.

If the client cancelled a file upload in the initial callback,
we would incorrectly proceed with the handshake.
---
 static/protocol.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/static/protocol.js b/static/protocol.js
index cecfa21..54b0b5d 100644
--- a/static/protocol.js
+++ b/static/protocol.js
@@ -1871,6 +1871,11 @@ ServerConnection.prototype.sendFile = function(id, file) {
         return;
     }
 
+    if(f.state === 'closed') {
+        // the client cancelled the transfer
+        return;
+    }
+
     sc.transferredFiles[f.fullid()] = f;
     sc.userMessage('filetransfer', id, {
         type: 'invite',