- Check if hook is enabled before constructing hook notification items

- Skip/early exit email hook if notification item is not a VCALENDAR

radicale/hook/__init__.py

@@ -33,6 +33,11 @@ class BaseHook:
         """
         self.configuration = configuration
 
+    @property
+    def enabled(self) -> bool:
+        """Check if this hook is enabled."""
+        raise NotImplementedError
+
     def notify(self, notification_item):
         """Upload a new or replace an existing item."""
         raise NotImplementedError
@@ -55,10 +60,12 @@ def _cleanup(path):
 
 class HookNotificationItem:
 
-    def __init__(self, notification_item_type, path, content=None, uid=None, new_content=None, old_content=None):
+    def __init__(self, notification_item_type, path, content=None, content_type=None, uid=None, new_content=None,
+                 old_content=None):
         self.type = notification_item_type.value
         self.point = _cleanup(path)
         self._content_legacy = content
+        self.content_type = content_type
         self.uid = uid
         self.new_content = new_content
         self.old_content = old_content
@@ -67,6 +74,30 @@ class HookNotificationItem:
     def content(self):  # For backward compatibility
         return self._content_legacy or self.uid or self.new_content or self.old_content
 
+    @property
+    def is_calendar_item(self) -> bool:
+        """Check if this notification item is related to a VCALENDAR item."""
+        if not self.content_type:
+            return False
+
+        return self.content_type.upper().strip() == "VCALENDAR"
+
+    @property
+    def is_card_item(self) -> bool:
+        """Check if this notification item is related to a VCARD item."""
+        if not self.content_type:
+            return False
+
+        return self.content_type.upper().strip() == "VCARD"
+
+    @property
+    def is_addressbook_item(self) -> bool:
+        """Check if this notification item is related to a VADDRESSBOOK item."""
+        if not self.content_type:
+            return False
+
+        return self.content_type.upper().strip() == "VADDRESSBOOK"
+
     @property
     def replaces_existing_item(self) -> bool:
         """Check if this notification item replaces/deletes an existing item."""

radicale/hook/email/__init__.py

@@ -930,12 +930,21 @@ class Hook(BaseHook):
             self.email_config
         )
 
+    @property
+    def enabled(self) -> bool:
+        """Check if this hook is enabled (has a notify method)."""
+        return self.email_config.host is not None
+
     def notify(self, notification_item) -> None:
         """
         Entrypoint for processing a single notification item.
         Overrides default notify method from BaseHook.
         Triggered by Radicale when a notifiable event occurs (e.g. item added, updated or deleted)
         """
+        # Skip any non-VCALENDAR items
+        if not notification_item.is_calendar_item:
+            return
+
         if isinstance(notification_item, HookNotificationItem):
             self._process_event_and_notify(notification_item)
 

radicale/hook/none.py

@@ -2,5 +2,10 @@ from radicale import hook
 
 
 class Hook(hook.BaseHook):
+    @property
+    def enabled(self) -> bool:
+        """Check if this hook is enabled."""
+        return False
+
     def notify(self, notification_item):
         """Notify nothing. Empty hook."""

radicale/hook/rabbitmq/__init__.py

@@ -53,6 +53,11 @@ class Hook(hook.BaseHook):
         logger.debug("Hook 'rabbitmq': _make_declare_queue_synced")
         self._channel.queue_declare(queue=self._topic, durable=True, arguments={"x-queue-type": self._queue_type})
 
+    @property
+    def enabled(self) -> bool:
+        """Check if this hook is enabled."""
+        return self._endpoint is not None
+
     def notify(self, notification_item):
         if isinstance(notification_item, HookNotificationItem):
             self._notify(notification_item, True)