[ML] Fix runtime field validations not supporting special script types (#122469) (#125300)

* Fix validations not handling extra things like params or lang

* Add translations

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>
(cherry picked from commit f8d932f70a)

x-pack/plugins/transform/common/api_schemas/common.ts

@@ -6,8 +6,9 @@
  */
 
 import { schema, TypeOf } from '@kbn/config-schema';
-
+import { i18n } from '@kbn/i18n';
 import { TRANSFORM_STATE } from '../constants';
+import { isRuntimeField } from '../shared_imports';
 
 export const transformIdsSchema = schema.arrayOf(
   schema.object({
@@ -57,26 +58,17 @@ export interface CommonResponseStatusSchema {
 }
 
 export const runtimeMappingsSchema = schema.maybe(
-  schema.recordOf(
-    schema.string(),
-    schema.object({
-      type: schema.oneOf([
-        schema.literal('keyword'),
-        schema.literal('long'),
-        schema.literal('double'),
-        schema.literal('date'),
-        schema.literal('ip'),
-        schema.literal('boolean'),
-        schema.literal('geo_point'),
-      ]),
-      script: schema.maybe(
-        schema.oneOf([
-          schema.string(),
-          schema.object({
-            source: schema.string(),
-          }),
-        ])
-      ),
-    })
+  schema.object(
+    {},
+    {
+      unknowns: 'allow',
+      validate: (v: object) => {
+        if (Object.values(v).some((o) => !isRuntimeField(o))) {
+          return i18n.translate('xpack.transform.invalidRuntimeFieldMessage', {
+            defaultMessage: 'Invalid runtime field',
+          });
+        }
+      },
+    }
   )
 );

x-pack/plugins/transform/common/shared_imports.ts

@@ -11,6 +11,7 @@ export {
   isPopulatedObject,
   isRuntimeMappings,
   patternValidator,
+  isRuntimeField,
 } from '../../ml/common';
 
 export { RUNTIME_FIELD_TYPES } from '../../../../src/plugins/data/common';