[9.5] [Inference] Make feature settings reading work for users without inference privileges (#290457)

x-pack/platform/plugins/shared/search_inference_endpoints/server/plugin.test.ts

@@ -7,7 +7,8 @@
 
 import { DEFAULT_APP_CATEGORIES } from '@kbn/core/server';
 import { actionsMock } from '@kbn/actions-plugin/server/mocks';
-import { coreMock, httpServerMock } from '@kbn/core/server/mocks';
+import { SavedObjectsErrorHelpers } from '@kbn/core/server';
+import { coreMock, httpServerMock, savedObjectsClientMock } from '@kbn/core/server/mocks';
 import { featuresPluginMock } from '@kbn/features-plugin/server/mocks';
 import { inferenceMock } from '@kbn/inference-plugin/server/mocks';
 import { SearchInferenceEndpointsPlugin } from './plugin';
@@ -113,15 +114,95 @@ describe('SearchInferenceEndpointsPlugin', () => {
       });
     });
 
-    it('endpoints.getForFeature reads inference settings with getScopedClient', async () => {
+    it('endpoints.getForFeature reads inference settings with the internal client', async () => {
       const request = httpServerMock.createKibanaRequest();
       await startContract.endpoints.getForFeature('any_feature', request);
 
-      expect(coreStart.savedObjects.getScopedClient).toHaveBeenCalledWith(request, {
+      expect(coreStart.savedObjects.getUnsafeInternalClient).toHaveBeenCalledWith({
         includedHiddenTypes: [INFERENCE_SETTINGS_SO_TYPE],
       });
     });
 
+    it('scopes the internal settings client to the namespace of the request', async () => {
+      const request = httpServerMock.createKibanaRequest();
+      const scopedClient = savedObjectsClientMock.create();
+      scopedClient.getCurrentNamespace.mockReturnValue('applications');
+      coreStart.savedObjects.getScopedClient.mockReturnValue(scopedClient);
+
+      const internalClient = savedObjectsClientMock.create();
+      const spaceScopedClient = savedObjectsClientMock.create();
+      internalClient.asScopedToNamespace.mockReturnValue(spaceScopedClient);
+      coreStart.savedObjects.getUnsafeInternalClient.mockReturnValue(internalClient);
+
+      await startContract.endpoints.getForFeature('any_feature', request);
+
+      expect(internalClient.asScopedToNamespace).toHaveBeenCalledWith('applications');
+      expect(spaceScopedClient.get).toHaveBeenCalledWith(INFERENCE_SETTINGS_SO_TYPE, 'default');
+      expect(internalClient.get).not.toHaveBeenCalled();
+    });
+
+    it('does not scope the internal settings client when the request is in the default space', async () => {
+      const request = httpServerMock.createKibanaRequest();
+      const internalClient = savedObjectsClientMock.create();
+      coreStart.savedObjects.getUnsafeInternalClient.mockReturnValue(internalClient);
+
+      await startContract.endpoints.getForFeature('any_feature', request);
+
+      expect(internalClient.asScopedToNamespace).not.toHaveBeenCalled();
+      expect(internalClient.get).toHaveBeenCalledWith(INFERENCE_SETTINGS_SO_TYPE, 'default');
+    });
+
+    it('applies the admin-configured model list to users who cannot read the settings saved object', async () => {
+      const request = httpServerMock.createKibanaRequest();
+      const scopedClient = savedObjectsClientMock.create();
+      scopedClient.get.mockRejectedValue(
+        SavedObjectsErrorHelpers.decorateForbiddenError(
+          new Error(`Unable to get ${INFERENCE_SETTINGS_SO_TYPE}`)
+        )
+      );
+      coreStart.savedObjects.getScopedClient.mockReturnValue(scopedClient);
+
+      const internalClient = savedObjectsClientMock.create();
+      internalClient.get.mockResolvedValue({
+        id: 'default',
+        type: INFERENCE_SETTINGS_SO_TYPE,
+        references: [],
+        attributes: { features: [{ feature_id: 'any_feature', endpoints: [{ id: 'allowed' }] }] },
+      });
+      coreStart.savedObjects.getUnsafeInternalClient.mockReturnValue(internalClient);
+
+      const createConnector = (connectorId: string) => ({
+        connectorId,
+        name: connectorId,
+        type: '.gen-ai',
+        config: {},
+        capabilities: {},
+        isPreconfigured: false,
+        isInferenceEndpoint: false,
+      });
+      const inference = inferenceMock.createStartContract();
+      inference.getConnectorList.mockResolvedValue([
+        createConnector('allowed'),
+        createConnector('hidden'),
+      ] as any);
+      inference.getConnectorById.mockImplementation(
+        async (id: string) => createConnector(id) as any
+      );
+
+      const contract = plugin.start(coreStart, { actions: actionsMock.createStart(), inference });
+      contract.features.register({
+        featureId: 'any_feature',
+        featureName: 'Any feature',
+        featureDescription: 'Any feature',
+        taskType: 'chat_completion',
+        recommendedEndpoints: [],
+      });
+      const result = await contract.endpoints.getForFeature('any_feature', request);
+
+      expect(result.soEntryFound).toBe(true);
+      expect(result.endpoints.map((e) => e.connectorId)).toEqual(['allowed']);
+    });
+
     it('creates a separate scoped SO client per request, ensuring space isolation', async () => {
       const requestA = httpServerMock.createKibanaRequest();
       const requestB = httpServerMock.createKibanaRequest();

x-pack/platform/plugins/shared/search_inference_endpoints/server/plugin.ts

@@ -12,6 +12,8 @@ import type {
   Logger,
   Plugin,
   PluginInitializerContext,
+  SavedObjectsClientContract,
+  SavedObjectsServiceStart,
 } from '@kbn/core/server';
 import { DEFAULT_APP_CATEGORIES } from '@kbn/core/server';
 import { ApiPrivileges } from '@kbn/core-security-server';
@@ -40,6 +42,20 @@ import {
   PLUGIN_NAME,
 } from '../common/constants';
 
+// Model settings are admin policy that must apply to every user, including those
+// without read access to the settings saved object, so the read bypasses user authz
+// while staying scoped to the request's active space.
+const getInferenceSettingsClient = (
+  savedObjects: SavedObjectsServiceStart,
+  request: KibanaRequest
+): SavedObjectsClientContract => {
+  const internalClient = savedObjects.getUnsafeInternalClient({
+    includedHiddenTypes: [INFERENCE_SETTINGS_SO_TYPE],
+  });
+  const namespace = savedObjects.getScopedClient(request).getCurrentNamespace();
+  return namespace ? internalClient.asScopedToNamespace(namespace) : internalClient;
+};
+
 export class SearchInferenceEndpointsPlugin
   implements
     Plugin<
@@ -76,9 +92,7 @@ export class SearchInferenceEndpointsPlugin
 
     const getForFeature = async (featureId: string, request: KibanaRequest) => {
       const [coreStart, pluginsStart] = await core.getStartServices();
-      const soClient = coreStart.savedObjects.getScopedClient(request, {
-        includedHiddenTypes: [INFERENCE_SETTINGS_SO_TYPE],
-      });
+      const soClient = getInferenceSettingsClient(coreStart.savedObjects, request);
       const getConnectorById = (id: string) => pluginsStart.inference.getConnectorById(id, request);
       return getForFeatureFn(featureRegistry, soClient, getConnectorById, featureId, this.logger);
     };
@@ -189,9 +203,7 @@ export class SearchInferenceEndpointsPlugin
       },
       endpoints: {
         getForFeature: async (featureId: string, request: KibanaRequest) => {
-          const soClient = core.savedObjects.getScopedClient(request, {
-            includedHiddenTypes: [INFERENCE_SETTINGS_SO_TYPE],
-          });
+          const soClient = getInferenceSettingsClient(core.savedObjects, request);
           const uiSettingsClient = core.uiSettings.asScopedToClient(
             core.savedObjects.getScopedClient(request)
           );