Handle timeout errors

src/howitz/__init__.py

@@ -13,7 +13,8 @@
 from howitz.config.utils import load_config
 from howitz.config.zino1 import make_zino1_config
 from howitz.config.howitz import make_howitz_config
-from howitz.error_handlers import handle_generic_exception, handle_generic_http_exception, handle_400, handle_404, handle_403, handle_lost_connection
+from howitz.error_handlers import handle_generic_exception, handle_generic_http_exception, handle_400, handle_404, \
+    handle_403, handle_lost_connection, handle_timeout
 from howitz.users.db import UserDB
 from howitz.users.commands import user_cli
 from zinolib.controllers.zino1 import Zino1EventManager, LostConnectionError, NotConnectedError
@@ -33,6 +34,7 @@ def create_app(test_config=None):
     app.register_error_handler(LostConnectionError, handle_lost_connection)
     app.register_error_handler(BrokenPipeError, handle_lost_connection)
     app.register_error_handler(NotConnectedError, handle_lost_connection)
+    app.register_error_handler(TimeoutError, handle_timeout)
 
     # load config
     app = load_config(app, test_config)

src/howitz/error_handlers.py

@@ -110,3 +110,14 @@ def handle_lost_connection(e):
         res = make_response()
         res.headers['HX-Redirect'] = '/login'
         return res
+
+
+def handle_timeout(e):
+    current_app.logger.error("Timeout har occurred: %s", e)
+
+    response = make_response(render_template('/responses/error-banner.html',
+                                             error_message="Timeout has occurred."))
+
+    response.headers['HX-Reswap'] = 'beforebegin'
+
+    return response, 500

src/howitz/templates/responses/error-banner.html

@@ -0,0 +1,6 @@
+<div tabindex="-1"
+     class="fixed top-0 start-0 z-50 flex justify-center w-full p-4 border-b bg-rose-700 border-rose-600">
+    <p>
+        {{ error_message }}
+    </p>
+</div>