Log the HTTP port for all requests, not just where auth required

On the contrary, we don’t care about logging ports for WebSockets.

It would be a bit more efficient to store the detected port into
g.port here and reuse it later in require_auth(), but OTOH that
would make the tests for require_auth a bit more complicated, since
before_request decorators are not automatically imported.

Signed-off-by: Andrej Shadura <andrew.shadura@collabora.co.uk>

obs_proxy/server.py

@@ -88,15 +88,21 @@ ws_connections = {}
 jobs = bidict()
 
 
+@app.before_request
+@ext_resources.before_request
+async def log_port():
+    _, port = request.scope['server']
+    structlog.contextvars.bind_contextvars(
+        http_port=port,
+    )
+
+
 def require_auth(f):
     """Require authentication when accessed over the external server port"""
     @functools.wraps(f)
     async def wrapper(*args, **kwargs):
         ctx = request if has_request_context() else websocket
         _, port = ctx.scope['server']
-        structlog.contextvars.bind_contextvars(
-            http_port=port,
-        )
         if port == config.server.port:
             if not ctx.authorization:
                 return 'auth required', 401, {'WWW-Authenticate': 'Basic'}