From fc12b6667a692389ac022c6c81c36591eaf47c92 Mon Sep 17 00:00:00 2001
From: Girish Ramakrishnan <girish@cloudron.io>
Date: Fri, 2 Apr 2021 09:42:40 -0700
Subject: [PATCH] handle 'continue' event only once (#3674)

Linode Object Storage sends multiple '100 continue' lines as a response
to 'Expect: 100-continue'. This causes node.js to parse the response
correctly and fire the 'continue' event twice.

See also #3404
---
 .changes/next-release/bugfix-s3-a986db56.json | 5 +++++
 lib/http/node.js                              | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 .changes/next-release/bugfix-s3-a986db56.json

diff --git a/.changes/next-release/bugfix-s3-a986db56.json b/.changes/next-release/bugfix-s3-a986db56.json
new file mode 100644
index 0000000000..220934c94d
--- /dev/null
+++ b/.changes/next-release/bugfix-s3-a986db56.json
@@ -0,0 +1,5 @@
+{
+  "type": "bugfix",
+  "category": "s3",
+  "description": "handle 'continue' event only once"
+}
\ No newline at end of file
diff --git a/lib/http/node.js b/lib/http/node.js
index be69f691d7..a4c4a34fd7 100644
--- a/lib/http/node.js
+++ b/lib/http/node.js
@@ -98,7 +98,7 @@ AWS.NodeHttpClient = AWS.util.inherit({
 
     var expect = httpRequest.headers.Expect || httpRequest.headers.expect;
     if (expect === '100-continue') {
-      stream.on('continue', function() {
+      stream.once('continue', function() {
         self.writeBody(stream, httpRequest);
       });
     } else {