From 22704e9224db4aba1e607f565186aad3b9e658e4 Mon Sep 17 00:00:00 2001
From: jxxghp <jxxghp@gmail.com>
Date: Mon, 5 Oct 2026 13:01:42 +0800
Subject: [PATCH] fix(api): allow dedicated identifier writes

---
 app/api/endpoints/identifier.py      |  1 +
 tests/test_system_identifiers_api.py | 29 +++++++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/app/api/endpoints/identifier.py b/app/api/endpoints/identifier.py
index 17a86e0fe..19aa98fc7 100644
--- a/app/api/endpoints/identifier.py
+++ b/app/api/endpoints/identifier.py
@@ -67,6 +67,7 @@ async def update_custom_identifiers(
             value=identifiers or None,
             expected_value=payload.expected_identifiers,
             enforce_expected_value=payload.expected_identifiers is not None,
+            allow_managed_write=True,
         )
     except SystemSettingConflictError as error:
         raise HTTPException(
diff --git a/tests/test_system_identifiers_api.py b/tests/test_system_identifiers_api.py
index 357da1183..520e3b2cb 100644
--- a/tests/test_system_identifiers_api.py
+++ b/tests/test_system_identifiers_api.py
@@ -7,7 +7,7 @@ import pytest
 from fastapi import HTTPException
 
 import app.api.endpoints.identifier as system_endpoint
-from app.application.settings import SystemSettingConflictError
+from app.application.settings.service import SystemSettingConflictError
 from app.schemas.system import CustomIdentifiersUpdateRequest
 from app.schemas.types import SystemConfigKey
 
@@ -73,6 +73,33 @@ async def test_update_identifiers_forwards_expected_snapshot(monkeypatch) -> Non
             "value": ["A", "B"],
             "expected_value": ["A"],
             "enforce_expected_value": True,
+            "allow_managed_write": True,
+        }
+    ]
+
+
+@pytest.mark.asyncio
+async def test_update_identifiers_without_expected_snapshot_allows_managed_write(monkeypatch) -> None:
+    """未提供前端基线时，专用接口仍应获得托管设置写入权限。"""
+    monkeypatch.setattr(system_endpoint, "SystemSettingsService", _RecordingSettingsService)
+    monkeypatch.setattr(system_endpoint, "get_runtime_settings", MagicMock())
+    monkeypatch.setattr(system_endpoint, "get_configured_system_config", MagicMock())
+    runtime = SimpleNamespace(system=SimpleNamespace(publish_config_changed=AsyncMock()))
+
+    response = await system_endpoint.update_custom_identifiers(
+        payload=CustomIdentifiersUpdateRequest(identifiers=["A", "B"]),
+        _=object(),
+        runtime=runtime,
+    )
+
+    assert response.success is True
+    assert _RecordingSettingsService.calls == [
+        {
+            "setting_key": SystemConfigKey.CustomIdentifiers.value,
+            "value": ["A", "B"],
+            "expected_value": None,
+            "enforce_expected_value": False,
+            "allow_managed_write": True,
         }
     ]