From b8984f0c2c3f23f347e5fdb90eb248d2750fe8bb Mon Sep 17 00:00:00 2001
From: Audiolib <audiolib@setup>
Date: Tue, 26 May 2026 14:53:11 +0200
Subject: [PATCH] Fix nginx: route GET /login to frontend, POST /login to
 backend

The previous regex routed all methods for /login to the backend.
A browser navigating to /login sends GET, which returned 405 because
the backend only has POST /login. Now GET goes to the React SPA.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 nginx/nginx.conf | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)

diff --git a/nginx/nginx.conf b/nginx/nginx.conf
index 6d8671d..27365f6 100644
--- a/nginx/nginx.conf
+++ b/nginx/nginx.conf
@@ -23,18 +23,38 @@ http {
     server {
         listen 80;
 
-        # API, HLS-Streams, Auth
-        location ~ ^/(api|hls|login|logout|ping)(/.*)?$ {
+        # API + HLS + ping: immer Backend
+        location ~ ^/(api|hls|ping)(/.*)?$ {
             proxy_pass http://backend;
             proxy_set_header Host $host;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
             proxy_read_timeout 300s;
-            # HLS streaming: disable buffering
             proxy_buffering off;
         }
 
-        # Cover images / static media served by backend
+        # POST /login → Backend (ABS-API), GET /login → Frontend (React SPA)
+        location = /login {
+            if ($request_method = POST) {
+                proxy_pass http://backend;
+            }
+            proxy_pass http://frontend;
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_read_timeout 300s;
+        }
+
+        # POST /logout → Backend
+        location = /logout {
+            if ($request_method = POST) {
+                proxy_pass http://backend;
+            }
+            proxy_pass http://frontend;
+            proxy_set_header Host $host;
+        }
+
+        # Cover images
         location /covers/ {
             proxy_pass http://backend;
             proxy_set_header Host $host;
@@ -42,7 +62,7 @@ http {
             add_header Cache-Control "public";
         }
 
-        # Frontend (React SPA)
+        # Frontend (React SPA) — alle anderen Routen
         location / {
             proxy_pass http://frontend;
             proxy_set_header Host $host;