enh: channel notification

backend/open_webui/utils/access_control.py

@@ -1,4 +1,5 @@
 from typing import Optional, Union, List, Dict, Any
+from open_webui.models.users import Users, UserModel
 from open_webui.models.groups import Groups
 import json
 
@@ -93,3 +94,24 @@ def has_access(
     return user_id in permitted_user_ids or any(
         group_id in permitted_group_ids for group_id in user_group_ids
     )
+
+
+# Get all users with access to a resource
+def get_users_with_access(
+    type: str = "write", access_control: Optional[dict] = None
+) -> List[UserModel]:
+    if access_control is None:
+        return Users.get_users()
+
+    permission_access = access_control.get(type, {})
+    permitted_group_ids = permission_access.get("group_ids", [])
+    permitted_user_ids = permission_access.get("user_ids", [])
+
+    user_ids_with_access = set(permitted_user_ids)
+
+    for group_id in permitted_group_ids:
+        group_user_ids = Groups.get_group_user_ids_by_id(group_id)
+        if group_user_ids:
+            user_ids_with_access.update(group_user_ids)
+
+    return Users.get_users_by_user_ids(list(user_ids_with_access))