From bfe17d0b65621aa07e50a55a6f252ed824ea435e Mon Sep 17 00:00:00 2001
From: Lennart <18233294+lennart-k@users.noreply.github.com>
Date: Sat, 23 Aug 2025 19:55:29 +0200
Subject: [PATCH] caldav import: Add safeguard against empty addressbooks

---
 crates/carddav/src/addressbook/methods/import.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/crates/carddav/src/addressbook/methods/import.rs b/crates/carddav/src/addressbook/methods/import.rs
index 231723f..99e8761 100644
--- a/crates/carddav/src/addressbook/methods/import.rs
+++ b/crates/carddav/src/addressbook/methods/import.rs
@@ -44,6 +44,10 @@ pub async fn route_import<AS: AddressbookStore, S: SubscriptionStore>(
         objects.push(card.try_into().unwrap());
     }
 
+    if objects.is_empty() {
+        return Ok((StatusCode::BAD_REQUEST, "empty addressbook data").into_response());
+    }
+
     let addressbook = Addressbook {
         principal,
         id: addressbook_id,