Add initial webmanifest controller

src/app.ts

@@ -114,6 +114,7 @@ import { frontendController } from '@/controllers/frontend.ts';
 import { metricsController } from '@/controllers/metrics.ts';
 import { indexController } from '@/controllers/site.ts';
 import '@/startup.ts';
+import { manifestController } from '@/controllers/manifest.ts';
 import { nodeInfoController, nodeInfoSchemaController } from '@/controllers/well-known/nodeinfo.ts';
 import { nostrController } from '@/controllers/well-known/nostr.ts';
 import { auth98Middleware, requireProof, requireRole } from '@/middleware/auth98Middleware.ts';
@@ -178,6 +179,7 @@ app.get('/.well-known/nodeinfo', nodeInfoController);
 app.get('/.well-known/nostr.json', nostrController);
 
 app.get('/nodeinfo/:version', nodeInfoSchemaController);
+app.get('/manifest.webmanifest', manifestController);
 
 app.get('/api/v1/instance', instanceV1Controller);
 app.get('/api/v2/instance', instanceV2Controller);

src/controllers/manifest.ts

@@ -0,0 +1,23 @@
+import { AppController } from '@/app.ts';
+import { Storages } from '@/storages.ts';
+import { WebManifestCombined } from '@/types/webmanifest.ts';
+import { getInstanceMetadata } from '@/utils/instance.ts';
+
+export const manifestController: AppController = async (c) => {
+  const meta = await getInstanceMetadata(await Storages.db(), c.req.raw.signal);
+
+  const manifest: WebManifestCombined = {
+    name: meta.name,
+    short_name: meta.name,
+    start_url: '/',
+    display: 'standalone',
+    scope: '/',
+    description: meta.about,
+  };
+
+  return c.json(manifest, {
+    headers: {
+      'Content-Type': 'application/manifest+json',
+    },
+  });
+};

src/types/webmanifest.ts

@@ -0,0 +1,250 @@
+// This file was generated from a JSON Schema by running `json-schema-to-typescript`.
+// https://json.schemastore.org/web-manifest-combined.json
+
+export type WebManifestCombined = WebManifest & WebManifestAppInfo & WebManifestShareTarget;
+
+export interface WebManifest {
+  /**
+   * The background_color member describes the expected background color of the web application.
+   */
+  background_color?: string;
+  /**
+   * The base direction of the manifest.
+   */
+  dir?: 'ltr' | 'rtl' | 'auto';
+  /**
+   * The item represents the developer's preferred display mode for the web application.
+   */
+  display?: 'fullscreen' | 'standalone' | 'minimal-ui' | 'browser';
+  /**
+   * The icons member is an array of icon objects that can serve as iconic representations of the web application in various contexts.
+   */
+  icons?: ManifestImageResource[];
+  /**
+   * The primary language for the values of the manifest.
+   */
+  lang?: string;
+  /**
+   * The name of the web application.
+   */
+  name?: string;
+  /**
+   * The orientation member is a string that serves as the default orientation for all  top-level browsing contexts of the web application.
+   */
+  orientation?:
+    | 'any'
+    | 'natural'
+    | 'landscape'
+    | 'portrait'
+    | 'portrait-primary'
+    | 'portrait-secondary'
+    | 'landscape-primary'
+    | 'landscape-secondary';
+  /**
+   * Boolean value that is used as a hint for the user agent to say that related applications should be preferred over the web application.
+   */
+  prefer_related_applications?: boolean;
+  /**
+   * Array of application accessible to the underlying application platform that has a relationship with the web application.
+   */
+  related_applications?: ExternalApplicationResource[];
+  /**
+   * A string that represents the navigation scope of this web application's application context.
+   */
+  scope?: string;
+  /**
+   * A string that represents a short version of the name of the web application.
+   */
+  short_name?: string;
+  /**
+   * Array of shortcut items that provide access to key tasks within a web application.
+   */
+  shortcuts?: ShortcutItem[];
+  /**
+   * Represents the URL that the developer would prefer the user agent load when the user launches the web application.
+   */
+  start_url?: string;
+  /**
+   * The theme_color member serves as the default theme color for an application context.
+   */
+  theme_color?: string;
+  /**
+   * A string that represents the id of the web application.
+   */
+  id?: string;
+  [k: string]: unknown;
+}
+
+export interface ManifestImageResource {
+  /**
+   * The sizes member is a string consisting of an unordered set of unique space-separated tokens which are ASCII case-insensitive that represents the dimensions of an image for visual media.
+   */
+  sizes?: string | 'any';
+  /**
+   * The src member of an image is a URL from which a user agent can fetch the icon's data.
+   */
+  src: string;
+  /**
+   * The type member of an image is a hint as to the media type of the image.
+   */
+  type?: string;
+  purpose?:
+    | 'monochrome'
+    | 'maskable'
+    | 'any'
+    | 'monochrome maskable'
+    | 'monochrome any'
+    | 'maskable monochrome'
+    | 'maskable any'
+    | 'any monochrome'
+    | 'any maskable'
+    | 'monochrome maskable any'
+    | 'monochrome any maskable'
+    | 'maskable monochrome any'
+    | 'maskable any monochrome'
+    | 'any monochrome maskable'
+    | 'any maskable monochrome';
+  [k: string]: unknown;
+}
+
+export interface ExternalApplicationResource {
+  /**
+   * The platform it is associated to.
+   */
+  platform: 'chrome_web_store' | 'play' | 'itunes' | 'windows';
+  /**
+   * The URL where the application can be found.
+   */
+  url?: string;
+  /**
+   * Information additional to the URL or instead of the URL, depending on the platform.
+   */
+  id?: string;
+  /**
+   * Information about the minimum version of an application related to this web app.
+   */
+  min_version?: string;
+  /**
+   * An array of fingerprint objects used for verifying the application.
+   */
+  fingerprints?: {
+    type?: string;
+    value?: string;
+    [k: string]: unknown;
+  }[];
+  [k: string]: unknown;
+}
+
+/**
+ * A shortcut item represents a link to a key task or page within a web app. A user agent can use these values to assemble a context menu to be displayed by the operating system when a user engages with the web app's icon.
+ */
+export interface ShortcutItem {
+  /**
+   * The name member of a shortcut item is a string that represents the name of the shortcut as it is usually displayed to the user in a context menu.
+   */
+  name: string;
+  /**
+   * The short_name member of a shortcut item is a string that represents a short version of the name of the shortcut. It is intended to be used where there is insufficient space to display the full name of the shortcut.
+   */
+  short_name?: string;
+  /**
+   * The description member of a shortcut item is a string that allows the developer to describe the purpose of the shortcut.
+   */
+  description?: string;
+  /**
+   * The url member of a shortcut item is a URL within scope of a processed manifest that opens when the associated shortcut is activated.
+   */
+  url: string;
+  /**
+   * The icons member of a shortcut item serves as iconic representations of the shortcut in various contexts.
+   */
+  icons?: ManifestImageResource[];
+  [k: string]: unknown;
+}
+
+export interface WebManifestAppInfo {
+  /**
+   * Describes the expected application categories to which the web application belongs.
+   */
+  categories?: string[];
+  /**
+   * Description of the purpose of the web application
+   */
+  description?: string;
+  /**
+   * Represents an ID value of the IARC rating of the web application. It is intended to be used to determine which ages the web application is appropriate for.
+   */
+  iarc_rating_id?: string;
+  /**
+   * The screenshots member is an array of image objects represent the web application in common usage scenarios.
+   */
+  screenshots?: ManifestImageResource[];
+  [k: string]: unknown;
+}
+
+export interface WebManifestShareTarget {
+  share_target?: ShareTarget;
+  [k: string]: unknown;
+}
+
+/**
+ * Declares the application to be a web share target, and describes how it receives share data.
+ */
+export interface ShareTarget {
+  /**
+   * The URL for the web share target.
+   */
+  action: string;
+  /**
+   * The HTTP request method for the web share target.
+   */
+  method?: 'GET' | 'POST' | 'get' | 'post';
+  /**
+   * This member specifies the encoding in the share request.
+   */
+  enctype?:
+    | 'application/x-www-form-urlencoded'
+    | 'multipart/form-data'
+    | 'APPLICATION/X-WWW-FORM-URLENCODED'
+    | 'MULTIPART/FORM-DATA';
+  params: ShareTargetParams;
+  [k: string]: unknown;
+}
+
+/**
+ * Specifies what data gets shared in the request.
+ */
+export interface ShareTargetParams {
+  /**
+   * The name of the query parameter used for the title of the document being shared.
+   */
+  title?: string;
+  /**
+   * The name of the query parameter used for the message body, made of arbitrary text.
+   */
+  text?: string;
+  /**
+   * The name of the query parameter used for the URL string referring to a resource being shared.
+   */
+  url?: string;
+  /**
+   * Description of how the application receives files from share requests.
+   */
+  files?: ShareTargetFiles | ShareTargetFiles[];
+  [k: string]: unknown;
+}
+
+/**
+ * Description of how the application receives files from share requests.
+ */
+export interface ShareTargetFiles {
+  /**
+   * The name of the form field used to share the files.
+   */
+  name: string;
+  /**
+   * Sequence of accepted MIME types or file extensions can be shared to the application.
+   */
+  accept: string | string[];
+  [k: string]: unknown;
+}