utils: Ajout du décorateur @guest_only

app/utils/priv_required.py

@@ -36,3 +36,15 @@ def priv_required(*perms):
             return func(*args, **kwargs)
         return wrapped
     return decorated_view
+
+
+def guest_only(func):
+    """
+    Opposite decorator of @login_required
+    """
+    @wraps(func)
+    def wrapped(*args, **kwargs):
+        if current_user.is_authenticated:
+            abort(404)
+        return func(*args, **kwargs)
+    return wrapped