Using content-disposition pkg for non-US font titles in reporting (#30895) (#31713)

* Using content-disposition for non-US font titles in reporting

x-pack/package.json

@@ -158,6 +158,7 @@
     "classnames": "2.2.5",
     "concat-stream": "1.5.1",
     "constate": "^0.9.0",
+    "content-disposition": "0.5.3",
     "copy-to-clipboard": "^3.0.8",
     "cronstrue": "^1.51.0",
     "d3": "3.5.6",

x-pack/plugins/reporting/server/routes/lib/get_document_payload.ts

@@ -0,0 +1,81 @@
+/*
+ * 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.
+ */
+
+// @ts-ignore
+import contentDisposition from 'content-disposition';
+// @ts-ignore
+import { oncePerServer } from '../../lib/once_per_server';
+
+const DEFAULT_TITLE = 'report';
+
+const getTitle = (exportType: any, title?: string): string =>
+  `${title || DEFAULT_TITLE}.${exportType.jobContentExtension}`;
+
+function getDocumentPayloadFn(server: any) {
+  const exportTypesRegistry = server.plugins.reporting.exportTypesRegistry;
+
+  function encodeContent(content: string, exportType: any) {
+    switch (exportType.jobContentEncoding) {
+      case 'base64':
+        return Buffer.from(content, 'base64');
+      default:
+        return content;
+    }
+  }
+
+  function getCompleted(output: any, jobType: string, title: any) {
+    const exportType = exportTypesRegistry.get((item: any) => item.jobType === jobType);
+    const filename = getTitle(exportType, title);
+
+    return {
+      statusCode: 200,
+      content: encodeContent(output.content, exportType),
+      contentType: output.content_type,
+      headers: {
+        'Content-Disposition': contentDisposition(filename, { type: 'inline' }),
+      },
+    };
+  }
+
+  function getFailure(output: any) {
+    return {
+      statusCode: 500,
+      content: {
+        message: 'Reporting generation failed',
+        reason: output.content,
+      },
+      contentType: 'application/json',
+    };
+  }
+
+  function getIncomplete(status: any) {
+    return {
+      statusCode: 503,
+      content: status,
+      contentType: 'application/json',
+      headers: {
+        'retry-after': 30,
+      },
+    };
+  }
+
+  return function getDocumentPayload(doc: any) {
+    const { status, output, jobtype: jobType, payload: { title } = { title: '' } } = doc._source;
+
+    if (status === 'completed') {
+      return getCompleted(output, jobType, title);
+    }
+
+    if (status === 'failed') {
+      return getFailure(output);
+    }
+
+    // send a 503 indicating that the report isn't completed yet
+    return getIncomplete(status);
+  };
+}
+
+export const getDocumentPayloadFactory = oncePerServer(getDocumentPayloadFn);

yarn.lock

@@ -5973,6 +5973,13 @@ content-disposition@0.5.2:
   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
   integrity sha1-DPaLud318r55YcOoUXjLhdunjLQ=
 
+content-disposition@0.5.3:
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.3.tgz#e130caf7e7279087c5616c2007d0485698984fbd"
+  integrity sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==
+  dependencies:
+    safe-buffer "5.1.2"
+
 content-type-parser@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/content-type-parser/-/content-type-parser-1.0.2.tgz#caabe80623e63638b2502fd4c7f12ff4ce2352e7"