SIEM] Moves validation up to the common section

## Summary

Moves validation up to the common section so it can be used by others in common for API boundary validation.

x-pack/plugins/lists/common/schemas/request/update_exception_list_item_schema.test.ts

@@ -147,7 +147,7 @@ describe('update_exception_list_item_schema', () => {
 
   // TODO: Is it expected behavior for it not to auto-generate a uui or throw
   // error if item_id is not passed in?
-  xtest('it should accept an undefined for "item_id" and auto generate a uuid', () => {
+  test.skip('it should accept an undefined for "item_id" and auto generate a uuid', () => {
     const inputPayload = getUpdateExceptionListItemSchemaMock();
     delete inputPayload.item_id;
     const decoded = updateExceptionListItemSchema.decode(inputPayload);

x-pack/plugins/lists/common/schemas/response/exception_list_item_schema.test.ts

@@ -101,7 +101,7 @@ describe('exception_list_item_schema', () => {
 
   // TODO: Should this throw an error? "namespace_type" gets auto-populated
   // with default "single", is that desired behavior?
-  xtest('it should NOT accept an undefined for "namespace_type"', () => {
+  test.skip('it should NOT accept an undefined for "namespace_type"', () => {
     const payload = getExceptionListItemSchemaMock();
     delete payload.namespace_type;
     const decoded = exceptionListItemSchema.decode(payload);

x-pack/plugins/lists/common/siem_common_deps.ts

@@ -9,3 +9,5 @@ export { DefaultUuid } from '../../security_solution/common/detection_engine/sch
 export { DefaultStringArray } from '../../security_solution/common/detection_engine/schemas/types/default_string_array';
 export { exactCheck } from '../../security_solution/common/exact_check';
 export { getPaths, foldLeftRight } from '../../security_solution/common/test_utils';
+export { validate } from '../../security_solution/common/validate';
+export { formatErrors } from '../../security_solution/common/format_errors';

x-pack/plugins/lists/server/routes/create_exception_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   CreateExceptionListItemSchemaDecoded,
   createExceptionListItemSchema,

x-pack/plugins/lists/server/routes/create_exception_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   CreateExceptionListSchemaDecoded,
   createExceptionListSchema,

x-pack/plugins/lists/server/routes/create_list_index_route.ts

@@ -6,7 +6,8 @@
 
 import { IRouter } from 'kibana/server';
 
-import { buildSiemResponse, transformError, validate } from '../siem_server_deps';
+import { buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { LIST_INDEX } from '../../common/constants';
 import { acknowledgeSchema } from '../../common/schemas';
 

x-pack/plugins/lists/server/routes/create_list_item_route.ts

@@ -7,13 +7,9 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
 import { createListItemSchema, listItemSchema } from '../../common/schemas';
+import { validate } from '../../common/siem_common_deps';
 
 import { getListClient } from '.';
 

x-pack/plugins/lists/server/routes/create_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { createListSchema, listSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/delete_exception_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   DeleteExceptionListItemSchemaDecoded,
   deleteExceptionListItemSchema,

x-pack/plugins/lists/server/routes/delete_exception_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   DeleteExceptionListSchemaDecoded,
   deleteExceptionListSchema,

x-pack/plugins/lists/server/routes/delete_list_index_route.ts

@@ -7,7 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_INDEX } from '../../common/constants';
-import { buildSiemResponse, transformError, validate } from '../siem_server_deps';
+import { buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { acknowledgeSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/delete_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { deleteListItemSchema, listItemArraySchema, listItemSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/delete_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { deleteListSchema, listSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/find_exception_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   FindExceptionListItemSchemaDecoded,
   findExceptionListItemSchema,

x-pack/plugins/lists/server/routes/find_exception_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   FindExceptionListSchemaDecoded,
   findExceptionListSchema,

x-pack/plugins/lists/server/routes/find_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { findListItemSchema, foundListItemSchema } from '../../common/schemas';
 import { decodeCursor } from '../services/utils';
 

x-pack/plugins/lists/server/routes/find_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { findListSchema, foundListSchema } from '../../common/schemas';
 import { decodeCursor } from '../services/utils';
 

x-pack/plugins/lists/server/routes/import_list_item_route.ts

@@ -9,12 +9,8 @@ import { Readable } from 'stream';
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { importListItemQuerySchema, importListItemSchema, listSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/patch_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { listItemSchema, patchListItemSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/patch_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { listSchema, patchListSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/read_exception_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   ReadExceptionListItemSchemaDecoded,
   exceptionListItemSchema,

x-pack/plugins/lists/server/routes/read_exception_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   ReadExceptionListSchemaDecoded,
   exceptionListSchema,

x-pack/plugins/lists/server/routes/read_list_index_route.ts

@@ -7,7 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_INDEX } from '../../common/constants';
-import { buildSiemResponse, transformError, validate } from '../siem_server_deps';
+import { buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { listItemIndexExistSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/read_list_item_route.ts

@@ -7,13 +7,9 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
 import { listItemArraySchema, listItemSchema, readListItemSchema } from '../../common/schemas';
+import { validate } from '../../common/siem_common_deps';
 
 import { getListClient } from '.';
 

x-pack/plugins/lists/server/routes/read_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { listSchema, readListSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/update_exception_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   UpdateExceptionListItemSchemaDecoded,
   exceptionListItemSchema,

x-pack/plugins/lists/server/routes/update_exception_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { EXCEPTION_LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import {
   UpdateExceptionListSchemaDecoded,
   exceptionListSchema,

x-pack/plugins/lists/server/routes/update_list_item_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_ITEM_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { listItemSchema, updateListItemSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/routes/update_list_route.ts

@@ -7,12 +7,8 @@
 import { IRouter } from 'kibana/server';
 
 import { LIST_URL } from '../../common/constants';
-import {
-  buildRouteValidation,
-  buildSiemResponse,
-  transformError,
-  validate,
-} from '../siem_server_deps';
+import { buildRouteValidation, buildSiemResponse, transformError } from '../siem_server_deps';
+import { validate } from '../../common/siem_common_deps';
 import { listSchema, updateListSchema } from '../../common/schemas';
 
 import { getListClient } from '.';

x-pack/plugins/lists/server/siem_server_deps.ts

@@ -17,5 +17,4 @@ export {
   createBootstrapIndex,
   getIndexExists,
   buildRouteValidation,
-  validate,
 } from '../../security_solution/server';

x-pack/plugins/security_solution/common/validate.test.ts

@@ -0,0 +1,34 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import * as t from 'io-ts';
+
+import { validate } from './validate';
+
+describe('validate', () => {
+  test('it should do a validation correctly', () => {
+    const schema = t.exact(t.type({ a: t.number }));
+    const payload = { a: 1 };
+    const [validated, errors] = validate(payload, schema);
+
+    expect(validated).toEqual(payload);
+    expect(errors).toEqual(null);
+  });
+
+  test('it should do an in-validation correctly', () => {
+    const schema = t.exact(t.type({ a: t.number }));
+    const payload = { a: 'some other value' };
+    const [validated, errors] = validate(payload, schema);
+
+    expect(validated).toEqual(null);
+    expect(errors).toEqual('Invalid value "some other value" supplied to "a"');
+  });
+});

x-pack/plugins/security_solution/common/validate.ts

@@ -0,0 +1,25 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { fold } from 'fp-ts/lib/Either';
+import { pipe } from 'fp-ts/lib/pipeable';
+import * as t from 'io-ts';
+import { exactCheck } from './exact_check';
+import { formatErrors } from './format_errors';
+
+export const validate = <T extends t.Mixed>(
+  obj: object,
+  schema: T
+): [t.TypeOf<T> | null, string | null] => {
+  const decoded = schema.decode(obj);
+  const checked = exactCheck(obj, decoded);
+  const left = (errors: t.Errors): [T | null, string | null] => [
+    null,
+    formatErrors(errors).join(','),
+  ];
+  const right = (output: T): [T | null, string | null] => [output, null];
+  return pipe(checked, fold(left, right));
+};

x-pack/plugins/security_solution/server/index.ts

@@ -27,5 +27,4 @@ export { getPolicyExists } from './lib/detection_engine/index/get_policy_exists'
 export { createBootstrapIndex } from './lib/detection_engine/index/create_bootstrap_index';
 export { getIndexExists } from './lib/detection_engine/index/get_index_exists';
 export { buildRouteValidation } from './utils/build_validation/route_validation';
-export { validate } from './lib/detection_engine/routes/rules/validate';
 export { transformError, buildSiemResponse } from './lib/detection_engine/routes/utils';

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/add_prepackaged_rules_route.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { validate } from '../../../../../common/validate';
 import {
   PrePackagedRulesSchema,
   prePackagedRulesSchema,
@@ -18,7 +19,6 @@ import { updatePrepackagedRules } from '../../rules/update_prepacked_rules';
 import { getRulesToInstall } from '../../rules/get_rules_to_install';
 import { getRulesToUpdate } from '../../rules/get_rules_to_update';
 import { getExistingPrepackagedRules } from '../../rules/get_existing_prepackaged_rules';
-import { validate } from './validate';
 
 export const addPrepackedRulesRoute = (router: IRouter) => {
   router.put(

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/create_rules_bulk_route.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { validate } from '../../../../../common/validate';
 import { createRuleValidateTypeDependents } from '../../../../../common/detection_engine/schemas/request/create_rules_type_dependents';
 import { RuleAlertAction } from '../../../../../common/detection_engine/types';
 import {
@@ -19,7 +20,7 @@ import { throwHttpError } from '../../../machine_learning/validation';
 import { createRules } from '../../rules/create_rules';
 import { readRules } from '../../rules/read_rules';
 import { getDuplicates } from './utils';
-import { transformValidateBulkError, validate } from './validate';
+import { transformValidateBulkError } from './validate';
 import { getIndexExists } from '../../index/get_index_exists';
 import { buildRouteValidation } from '../../../../utils/build_validation/route_validation';
 

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/delete_rules_bulk_route.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { validate } from '../../../../../common/validate';
 import { queryRuleValidateTypeDependents } from '../../../../../common/detection_engine/schemas/request/query_rules_type_dependents';
 import { buildRouteValidation } from '../../../../utils/build_validation/route_validation';
 import {
@@ -14,7 +15,7 @@ import { rulesBulkSchema } from '../../../../../common/detection_engine/schemas/
 import { IRouter, RouteConfig, RequestHandler } from '../../../../../../../../src/core/server';
 import { DETECTION_ENGINE_RULES_URL } from '../../../../../common/constants';
 import { getIdBulkError } from './utils';
-import { transformValidateBulkError, validate } from './validate';
+import { transformValidateBulkError } from './validate';
 import { transformBulkError, buildSiemResponse, createBulkErrorObject } from '../utils';
 import { deleteRules } from '../../rules/delete_rules';
 import { deleteNotifications } from '../../notifications/delete_notifications';

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/get_prepackaged_rules_status_route.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { validate } from '../../../../../common/validate';
 import {
   PrePackagedRulesStatusSchema,
   prePackagedRulesStatusSchema,
@@ -16,7 +17,6 @@ import { getRulesToInstall } from '../../rules/get_rules_to_install';
 import { getRulesToUpdate } from '../../rules/get_rules_to_update';
 import { findRules } from '../../rules/find_rules';
 import { getExistingPrepackagedRules } from '../../rules/get_existing_prepackaged_rules';
-import { validate } from './validate';
 
 export const getPrepackagedRulesStatusRoute = (router: IRouter) => {
   router.get(

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/import_rules_route.ts

@@ -7,6 +7,7 @@
 import { chunk } from 'lodash/fp';
 import { extname } from 'path';
 
+import { validate } from '../../../../../common/validate';
 import {
   importRulesQuerySchema,
   ImportRulesQuerySchemaDecoded,
@@ -39,7 +40,6 @@ import {
 } from '../utils';
 import { patchRules } from '../../rules/patch_rules';
 import { getTupleDuplicateErrorsAndUniqueRules } from './utils';
-import { validate } from './validate';
 import { createRulesStreamFromNdJson } from '../../rules/create_rules_stream_from_ndjson';
 import { buildRouteValidation } from '../../../../utils/build_validation/route_validation';
 import { HapiReadableStream } from '../../rules/types';

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/patch_rules_bulk_route.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { validate } from '../../../../../common/validate';
 import { RuleAlertAction } from '../../../../../common/detection_engine/types';
 import {
   patchRulesBulkSchema,
@@ -18,7 +19,7 @@ import { buildMlAuthz } from '../../../machine_learning/authz';
 import { throwHttpError } from '../../../machine_learning/validation';
 import { transformBulkError, buildSiemResponse } from '../utils';
 import { getIdBulkError } from './utils';
-import { transformValidateBulkError, validate } from './validate';
+import { transformValidateBulkError } from './validate';
 import { patchRules } from '../../rules/patch_rules';
 import { updateRulesNotifications } from '../../rules/update_rules_notifications';
 import { ruleStatusSavedObjectsClientFactory } from '../../signals/rule_status_saved_objects_client';

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/update_rules_bulk_route.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { validate } from '../../../../../common/validate';
 import { updateRuleValidateTypeDependents } from '../../../../../common/detection_engine/schemas/request/update_rules_type_dependents';
 import { RuleAlertAction } from '../../../../../common/detection_engine/types';
 import { buildRouteValidation } from '../../../../utils/build_validation/route_validation';
@@ -18,7 +19,7 @@ import { SetupPlugins } from '../../../../plugin';
 import { buildMlAuthz } from '../../../machine_learning/authz';
 import { throwHttpError } from '../../../machine_learning/validation';
 import { getIdBulkError } from './utils';
-import { transformValidateBulkError, validate } from './validate';
+import { transformValidateBulkError } from './validate';
 import { transformBulkError, buildSiemResponse, createBulkErrorObject } from '../utils';
 import { updateRules } from '../../rules/update_rules';
 import { updateRulesNotifications } from '../../rules/update_rules_notifications';

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/validate.test.ts

@@ -4,10 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import * as t from 'io-ts';
-
 import {
-  validate,
   transformValidate,
   transformValidateFindAlerts,
   transformValidateBulkError,
@@ -121,26 +118,6 @@ describe('validate', () => {
     unSetFeatureFlagsForTestsOnly();
   });
 
-  describe('validate', () => {
-    test('it should do a validation correctly', () => {
-      const schema = t.exact(t.type({ a: t.number }));
-      const payload = { a: 1 };
-      const [validated, errors] = validate(payload, schema);
-
-      expect(validated).toEqual(payload);
-      expect(errors).toEqual(null);
-    });
-
-    test('it should do an in-validation correctly', () => {
-      const schema = t.exact(t.type({ a: t.number }));
-      const payload = { a: 'some other value' };
-      const [validated, errors] = validate(payload, schema);
-
-      expect(validated).toEqual(null);
-      expect(errors).toEqual('Invalid value "some other value" supplied to "a"');
-    });
-  });
-
   describe('transformValidate', () => {
     test('it should do a validation correctly of a partial alert', () => {
       const ruleAlert = getResult();

x-pack/plugins/security_solution/server/lib/detection_engine/routes/rules/validate.ts

@@ -9,6 +9,7 @@ import { fold } from 'fp-ts/lib/Either';
 import { pipe } from 'fp-ts/lib/pipeable';
 import * as t from 'io-ts';
 
+import { validate } from '../../../../../common/validate';
 import { findRulesSchema } from '../../../../../common/detection_engine/schemas/response/find_rules_schema';
 import {
   RulesSchema,
@@ -113,17 +114,3 @@ export const transformValidateBulkError = (
     });
   }
 };
-
-export const validate = <T extends t.Mixed>(
-  obj: object,
-  schema: T
-): [t.TypeOf<T> | null, string | null] => {
-  const decoded = schema.decode(obj);
-  const checked = exactCheck(obj, decoded);
-  const left = (errors: t.Errors): [T | null, string | null] => [
-    null,
-    formatErrors(errors).join(','),
-  ];
-  const right = (output: T): [T | null, string | null] => [output, null];
-  return pipe(checked, fold(left, right));
-};

x-pack/plugins/security_solution/server/lib/timeline/routes/import_timelines_route.ts

@@ -7,6 +7,7 @@
 import { extname } from 'path';
 import { chunk, omit } from 'lodash/fp';
 
+import { validate } from '../../../../common/validate';
 import { importRulesSchema } from '../../../../common/detection_engine/schemas/response/import_rules_schema';
 import { createPromiseFromStreams } from '../../../../../../../src/legacy/utils';
 import { IRouter } from '../../../../../../../src/core/server';
@@ -17,7 +18,6 @@ import { SetupPlugins } from '../../../plugin';
 import { ConfigType } from '../../../config';
 import { buildRouteValidation } from '../../../utils/build_validation/route_validation';
 
-import { validate } from '../../detection_engine/routes/rules/validate';
 import {
   buildSiemResponse,
   createBulkErrorObject,