safety commit

app/utils.py

@@ -5,7 +5,7 @@ from typing import cast
 from itsdangerous import BadSignature, URLSafeSerializer
 from xkcdpass import xkcd_password
 
-from .models import Deck, Token, db
+from .models import Deck, InfoBanner, Token, db
 
 def init_password_generator():
     wordfile = xkcd_password.locate_wordfile()
@@ -16,6 +16,9 @@ def init_serializer(app: Flask):
     global serializer
     serializer = URLSafeSerializer(app.config['SECRET_KEY'])
 
+def get_active_banner() -> InfoBanner | None:
+    return db.session.execute(db.select(InfoBanner).where(InfoBanner.is_active)).scalar_one_or_none()
+
 def get_available_decks(app: Flask):
     slides_dir = app.config['SLIDES_DIR']
     deck_names = [name for name in os.listdir(slides_dir) if os.path.isdir(os.path.join(slides_dir, name))]