[KP] Fix Headers timeout issue (#81140) (#81452)

* temp fix request headers bug. issue 73849

* add a focused test

* move test to FTR

* adjust types

* some minors

* small adjustments

src/core/server/http/http_tools.ts

@@ -103,6 +103,10 @@ interface ListenerOptions {
 export function createServer(serverOptions: ServerOptions, listenerOptions: ListenerOptions) {
   const server = new Server(serverOptions);
 
+  // remove fix + test as soon as update node.js to v12.19 https://github.com/elastic/kibana/pull/61587
+  server.listener.headersTimeout =
+    listenerOptions.keepaliveTimeout + 2 * server.listener.headersTimeout;
+
   server.listener.keepAliveTimeout = listenerOptions.keepaliveTimeout;
   server.listener.setTimeout(listenerOptions.socketTimeout);
   server.listener.on('timeout', (socket) => {

src/core/server/http/integration_tests/request.test.ts

@@ -313,7 +313,6 @@ describe('KibanaRequest', () => {
       expect(resp3.body).toEqual({ requestId: 'gamma' });
     });
   });
-
   describe('request uuid', () => {
     it('generates a UUID', async () => {
       const { server: innerServer, createRouter } = await server.setup(setupDeps);

src/core/server/http/test_utils.ts

@@ -50,6 +50,8 @@ configService.atPath.mockReturnValue(
       allowFromAnyIp: true,
       ipAllowlist: [],
     },
+    keepaliveTimeout: 120_000,
+    socketTimeout: 120_000,
   } as any)
 );
 

tasks/config/run.js

@@ -175,7 +175,7 @@ module.exports = function () {
         '--config',
         'test/server_integration/http/ssl_redirect/config.js',
         '--config',
-        'test/server_integration/http/cache/config.js',
+        'test/server_integration/http/platform/config.ts',
         '--config',
         'test/server_integration/http/ssl_with_p12/config.js',
         '--config',

test/server_integration/http/platform/cache.ts

@@ -16,9 +16,9 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-
+import { FtrProviderContext } from '../../services/types';
 // eslint-disable-next-line import/no-default-export
-export default function ({ getService }) {
+export default function ({ getService }: FtrProviderContext) {
   const supertest = getService('supertest');
 
   describe('kibana server cache-control', () => {

test/server_integration/http/platform/config.ts

@@ -16,16 +16,18 @@
  * specific language governing permissions and limitations
  * under the License.
  */
+import { FtrConfigProviderContext } from '@kbn/test/types/ftr';
 
-export default async function ({ readConfigFile }) {
+// eslint-disable-next-line import/no-default-export
+export default async function ({ readConfigFile }: FtrConfigProviderContext) {
   const httpConfig = await readConfigFile(require.resolve('../../config'));
 
   return {
-    testFiles: [require.resolve('./')],
+    testFiles: [require.resolve('./cache'), require.resolve('./headers')],
     services: httpConfig.get('services'),
     servers: httpConfig.get('servers'),
     junit: {
-      reportName: 'Http Cache-Control Integration Tests',
+      reportName: 'Kibana Platform Http Integration Tests',
     },
     esTestCluster: httpConfig.get('esTestCluster'),
     kbnTestServer: httpConfig.get('kbnTestServer'),

test/server_integration/http/platform/headers.ts

@@ -0,0 +1,82 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import Http from 'http';
+import Url from 'url';
+import { FtrProviderContext } from '../../services/types';
+
+// @ts-ignore
+import getUrl from '../../../../src/test_utils/get_url';
+
+const delay = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms));
+const oneSec = 1_000;
+
+// eslint-disable-next-line import/no-default-export
+export default function ({ getService }: FtrProviderContext) {
+  const config = getService('config');
+
+  describe('headers timeout ', () => {
+    it('issue-73849', async () => {
+      const agent = new Http.Agent({
+        keepAlive: true,
+      });
+      const { protocol, hostname, port } = Url.parse(getUrl.baseUrl(config.get('servers.kibana')));
+
+      function performRequest() {
+        return new Promise((resolve, reject) => {
+          const req = Http.request(
+            {
+              protocol,
+              hostname,
+              port,
+              path: '/',
+              method: 'GET',
+              agent,
+            },
+            function (res) {
+              let data = '';
+              res.on('data', (chunk) => {
+                data += chunk;
+              });
+              res.on('end', () => resolve(data));
+            }
+          );
+
+          req.on('socket', (socket) => {
+            socket.write('GET / HTTP/1.1\r\n');
+            setTimeout(() => {
+              socket.write('Host: localhost\r\n');
+            }, oneSec);
+            setTimeout(() => {
+              // headersTimeout doesn't seem to fire if request headers are sent in one packet.
+              socket.write('\r\n');
+              req.end();
+            }, 2 * oneSec);
+          });
+
+          req.on('error', reject);
+        });
+      }
+
+      await performRequest();
+      const defaultHeadersTimeout = 40 * oneSec;
+      await delay(defaultHeadersTimeout + oneSec);
+      await performRequest();
+    });
+  });
+}

test/server_integration/services/types.d.ts

@@ -0,0 +1,27 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { GenericFtrProviderContext } from '@kbn/test/types/ftr';
+import { services as kibanaCommonServices } from '../../common/services';
+import { services as kibanaApiIntegrationServices } from '../../api_integration/services';
+
+export type FtrProviderContext = GenericFtrProviderContext<
+  typeof kibanaCommonServices & { supertest: typeof kibanaApiIntegrationServices.supertest },
+  {}
+>;