From 00c5a132ab9f70f4527dd14c9dd969ceb8bd81f9 Mon Sep 17 00:00:00 2001
From: Ricardo Carneiro <ricardoroberto@outlook.com>
Date: Sat, 24 Jan 2026 21:05:50 -0300
Subject: [PATCH] fix: redirect loop infinito em URLs com cultura
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

O middleware redirecionava /pt-BR/* para /pt-BR/* causando
ERR_TOO_MANY_REDIRECTS. Adicionada verificação case-sensitive
para evitar redirect quando URL já está na forma canônica.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 Middleware/LanguageRedirectionMiddleware.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Middleware/LanguageRedirectionMiddleware.cs b/Middleware/LanguageRedirectionMiddleware.cs
index d6851eb..9d5fecc 100644
--- a/Middleware/LanguageRedirectionMiddleware.cs
+++ b/Middleware/LanguageRedirectionMiddleware.cs
@@ -12,7 +12,8 @@ namespace QRRapidoApp.Middleware
         {
             { "pt", "pt-BR" },
             { "pt-br", "pt-BR" },
-            { "es", "es-PY" }
+            { "es", "es-PY" },
+            { "es-py", "es-PY" }
         };
         private const string DefaultCulture = "pt-BR";
 
@@ -91,6 +92,12 @@ namespace QRRapidoApp.Middleware
             var firstSegment = segments[0];
             if (_cultureAliases.TryGetValue(firstSegment, out var mappedCulture))
             {
+                // Don't redirect if already using the canonical culture (case-sensitive check)
+                if (firstSegment == mappedCulture)
+                {
+                    return false;
+                }
+
                 var remainingSegments = segments.Length > 1
                     ? "/" + string.Join('/', segments.Skip(1))
                     : string.Empty;