From c04b7b411c6eafd2c9ae15ce68a907a02541df83 Mon Sep 17 00:00:00 2001
From: Joon Young Baik <110450904+baikjy0215@users.noreply.github.com>
Date: Fri, 11 Jul 2025 00:50:20 +1200
Subject: [PATCH] refactor: Performance and readability improvement on
 isDefaultPort (#6960)

---
 weed/s3api/auth_signature_v4.go | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/weed/s3api/auth_signature_v4.go b/weed/s3api/auth_signature_v4.go
index c70027106..0ddbaa917 100644
--- a/weed/s3api/auth_signature_v4.go
+++ b/weed/s3api/auth_signature_v4.go
@@ -763,9 +763,14 @@ func isDefaultPort(scheme, port string) bool {
 		return true
 	}
 
-	lowerCaseScheme := strings.ToLower(scheme)
-	return (lowerCaseScheme == "http" && port == "80") ||
-		(lowerCaseScheme == "https" && port == "443")
+	switch port {
+	case "80":
+		return strings.EqualFold(scheme, "http")
+	case "443":
+		return strings.EqualFold(scheme, "https")
+	default:
+		return false
+	}
 }
 
 // getSignedHeaders generate a string i.e alphabetically sorted, semicolon-separated list of lowercase request header names