Allow legacy imports size respect savedObjects.maxImportPayloadBytes config (#77409)

docs/api/dashboard/import-dashboard.asciidoc

@@ -23,7 +23,7 @@ experimental[] Import dashboards and corresponding saved objects.
 [[dashboard-api-import-request-body]]
 ==== Request body
 
-Use the complete response body from the <<dashboard-api-export, Export dashboard API>> as the request body. Do not manually construct a payload to the endpoint.
+Use the complete response body from the <<dashboard-api-export, Export dashboard API>> as the request body. Do not manually construct a payload to the endpoint. The max payload size is determined by the `savedObjects.maxImportPayloadBytes` configuration key.
 
 [[dashboard-api-import-response-body]]
 ==== Response body

docs/development/core/server/kibana-plugin-core-server.sharedglobalconfig.md

@@ -12,5 +12,6 @@ export declare type SharedGlobalConfig = RecursiveReadonly<{
     kibana: Pick<KibanaConfigType, typeof SharedGlobalConfigKeys.kibana[number]>;
     elasticsearch: Pick<ElasticsearchConfigType, typeof SharedGlobalConfigKeys.elasticsearch[number]>;
     path: Pick<PathConfigType, typeof SharedGlobalConfigKeys.path[number]>;
+    savedObjects: Pick<SavedObjectsConfigType, typeof SharedGlobalConfigKeys.savedObjects[number]>;
 }>;
 ```

src/core/server/mocks.ts

@@ -18,6 +18,7 @@
  */
 import { of } from 'rxjs';
 import { duration } from 'moment';
+import { ByteSizeValue } from '@kbn/config-schema';
 import { PluginInitializerContext, CoreSetup, CoreStart, StartServicesAccessor } from '.';
 import { loggingSystemMock } from './logging/logging_system.mock';
 import { loggingServiceMock } from './logging/logging_service.mock';
@@ -66,6 +67,9 @@ export function pluginInitializerContextConfigMock<T>(config: T) {
       startupTimeout: duration('30s'),
     },
     path: { data: '/tmp' },
+    savedObjects: {
+      maxImportPayloadBytes: new ByteSizeValue(10485760),
+    },
   };
 
   const mock: jest.Mocked<PluginInitializerContext<T>['config']> = {

src/core/server/plugins/plugin_context.test.ts

@@ -28,6 +28,7 @@ import { rawConfigServiceMock, getEnvOptions } from '../config/mocks';
 import { PluginManifest } from './types';
 import { Server } from '../server';
 import { fromRoot } from '../utils';
+import { ByteSizeValue } from '@kbn/config-schema';
 
 const logger = loggingSystemMock.create();
 
@@ -93,6 +94,7 @@ describe('createPluginInitializerContext', () => {
         startupTimeout: duration(5, 's'),
       },
       path: { data: fromRoot('data') },
+      savedObjects: { maxImportPayloadBytes: new ByteSizeValue(10485760) },
     });
   });
 

src/core/server/plugins/plugin_context.ts

@@ -35,6 +35,7 @@ import {
   ElasticsearchConfigType,
   config as elasticsearchConfig,
 } from '../elasticsearch/elasticsearch_config';
+import { SavedObjectsConfigType, savedObjectsConfig } from '../saved_objects/saved_objects_config';
 import { CoreSetup, CoreStart } from '..';
 
 export interface InstanceInfo {
@@ -91,16 +92,18 @@ export function createPluginInitializerContext(
          * Note: naming not final here, it will be renamed in a near future (https://github.com/elastic/kibana/issues/46240)
          * @deprecated
          */
-        globalConfig$: combineLatest(
+        globalConfig$: combineLatest([
           coreContext.configService.atPath<KibanaConfigType>(kibanaConfig.path),
           coreContext.configService.atPath<ElasticsearchConfigType>(elasticsearchConfig.path),
-          coreContext.configService.atPath<PathConfigType>(pathConfig.path)
-        ).pipe(
-          map(([kibana, elasticsearch, path]) =>
+          coreContext.configService.atPath<PathConfigType>(pathConfig.path),
+          coreContext.configService.atPath<SavedObjectsConfigType>(savedObjectsConfig.path),
+        ]).pipe(
+          map(([kibana, elasticsearch, path, savedObjects]) =>
             deepFreeze({
               kibana: pick(kibana, SharedGlobalConfigKeys.kibana),
               elasticsearch: pick(elasticsearch, SharedGlobalConfigKeys.elasticsearch),
               path: pick(path, SharedGlobalConfigKeys.path),
+              savedObjects: pick(savedObjects, SharedGlobalConfigKeys.savedObjects),
             })
           )
         ),

src/core/server/plugins/types.ts

@@ -26,6 +26,7 @@ import { ConfigPath, EnvironmentMode, PackageInfo, ConfigDeprecationProvider } f
 import { LoggerFactory } from '../logging';
 import { KibanaConfigType } from '../kibana_config';
 import { ElasticsearchConfigType } from '../elasticsearch/elasticsearch_config';
+import { SavedObjectsConfigType } from '../saved_objects/saved_objects_config';
 import { CoreSetup, CoreStart } from '..';
 
 /**
@@ -263,6 +264,7 @@ export const SharedGlobalConfigKeys = {
   kibana: ['index', 'autocompleteTerminateAfter', 'autocompleteTimeout'] as const,
   elasticsearch: ['shardTimeout', 'requestTimeout', 'pingTimeout', 'startupTimeout'] as const,
   path: ['data'] as const,
+  savedObjects: ['maxImportPayloadBytes'] as const,
 };
 
 /**
@@ -272,6 +274,7 @@ export type SharedGlobalConfig = RecursiveReadonly<{
   kibana: Pick<KibanaConfigType, typeof SharedGlobalConfigKeys.kibana[number]>;
   elasticsearch: Pick<ElasticsearchConfigType, typeof SharedGlobalConfigKeys.elasticsearch[number]>;
   path: Pick<PathConfigType, typeof SharedGlobalConfigKeys.path[number]>;
+  savedObjects: Pick<SavedObjectsConfigType, typeof SharedGlobalConfigKeys.savedObjects[number]>;
 }>;
 
 /**

src/core/server/server.api.md

@@ -2661,6 +2661,7 @@ export type SharedGlobalConfig = RecursiveReadonly<{
     kibana: Pick<KibanaConfigType_2, typeof SharedGlobalConfigKeys.kibana[number]>;
     elasticsearch: Pick<ElasticsearchConfigType, typeof SharedGlobalConfigKeys.elasticsearch[number]>;
     path: Pick<PathConfigType, typeof SharedGlobalConfigKeys.path[number]>;
+    savedObjects: Pick<SavedObjectsConfigType, typeof SharedGlobalConfigKeys.savedObjects[number]>;
 }>;
 
 // @public
@@ -2745,7 +2746,8 @@ export const validBodyOutput: readonly ["data", "stream"];
 //
 // src/core/server/http/router/response.ts:316:3 - (ae-forgotten-export) The symbol "KibanaResponse" needs to be exported by the entry point index.d.ts
 // src/core/server/legacy/types.ts:135:16 - (ae-forgotten-export) The symbol "LegacyPluginSpec" needs to be exported by the entry point index.d.ts
-// src/core/server/plugins/types.ts:272:3 - (ae-forgotten-export) The symbol "KibanaConfigType" needs to be exported by the entry point index.d.ts
-// src/core/server/plugins/types.ts:272:3 - (ae-forgotten-export) The symbol "SharedGlobalConfigKeys" needs to be exported by the entry point index.d.ts
+// src/core/server/plugins/types.ts:274:3 - (ae-forgotten-export) The symbol "KibanaConfigType" needs to be exported by the entry point index.d.ts
+// src/core/server/plugins/types.ts:274:3 - (ae-forgotten-export) The symbol "SharedGlobalConfigKeys" needs to be exported by the entry point index.d.ts
+// src/core/server/plugins/types.ts:277:3 - (ae-forgotten-export) The symbol "SavedObjectsConfigType" needs to be exported by the entry point index.d.ts
 
 ```

src/plugins/legacy_export/server/plugin.ts

@@ -18,18 +18,23 @@
  */
 
 import { Plugin, CoreSetup, PluginInitializerContext } from 'kibana/server';
+import { first } from 'rxjs/operators';
 import { registerRoutes } from './routes';
 
 export class LegacyExportPlugin implements Plugin<{}, {}> {
-  private readonly kibanaVersion: string;
+  constructor(private readonly initContext: PluginInitializerContext) {}
 
-  constructor(context: PluginInitializerContext) {
-    this.kibanaVersion = context.env.packageInfo.version;
-  }
+  public async setup({ http }: CoreSetup) {
+    const globalConfig = await this.initContext.config.legacy.globalConfig$
+      .pipe(first())
+      .toPromise();
 
-  public setup({ http }: CoreSetup) {
     const router = http.createRouter();
-    registerRoutes(router, this.kibanaVersion);
+    registerRoutes(
+      router,
+      this.initContext.env.packageInfo.version,
+      globalConfig.savedObjects.maxImportPayloadBytes.getValueInBytes()
+    );
 
     return {};
   }

src/plugins/legacy_export/server/routes/import.ts

@@ -21,7 +21,7 @@ import { schema } from '@kbn/config-schema';
 import { IRouter, SavedObject } from 'src/core/server';
 import { importDashboards } from '../lib';
 
-export const registerImportRoute = (router: IRouter) => {
+export const registerImportRoute = (router: IRouter, maxImportPayloadBytes: number) => {
   router.post(
     {
       path: '/api/kibana/dashboards/import',
@@ -39,6 +39,9 @@ export const registerImportRoute = (router: IRouter) => {
       },
       options: {
         tags: ['api'],
+        body: {
+          maxBytes: maxImportPayloadBytes,
+        },
       },
     },
     async (ctx, req, res) => {

src/plugins/legacy_export/server/routes/index.ts

@@ -21,7 +21,11 @@ import { IRouter } from 'src/core/server';
 import { registerImportRoute } from './import';
 import { registerExportRoute } from './export';
 
-export const registerRoutes = (router: IRouter, kibanaVersion: string) => {
+export const registerRoutes = (
+  router: IRouter,
+  kibanaVersion: string,
+  maxImportPayloadBytes: number
+) => {
   registerExportRoute(router, kibanaVersion);
-  registerImportRoute(router);
+  registerImportRoute(router, maxImportPayloadBytes);
 };