src/server/utils/generate-manifest-json.ts

   1 import { getHttpBaseExternal } from "@utils/env";
   2 import { readFile } from "fs/promises";
   3 import { GetSiteResponse } from "lemmy-js-client";
   4 import path from "path";
   5 import sharp from "sharp";
   6 import { fetchIconPng } from "./fetch-icon-png";
   7
   8 const iconSizes = [72, 96, 128, 144, 152, 192, 384, 512];
   9
  10 const defaultLogoPathDirectory = path.join(
  11   process.cwd(),
  12   "dist",
  13   "assets",
  14   "icons"
  15 );
  16
  17 export default async function ({
  18   my_user,
  19   site_view: {
  20     site,
  21     local_site: { community_creation_admin_only },
  22   },
  23 }: GetSiteResponse) {
  24   const url = getHttpBaseExternal();
  25
  26   const icon = site.icon ? await fetchIconPng(site.icon) : null;
  27
  28   return {
  29     name: site.name,
  30     description: site.description ?? "A link aggregator for the fediverse",
  31     start_url: url,
  32     scope: url,
  33     display: "standalone",
  34     id: "/",
  35     background_color: "#222222",
  36     theme_color: "#222222",
  37     icons: await Promise.all(
  38       iconSizes.map(async size => {
  39         let src = await readFile(
  40           path.join(defaultLogoPathDirectory, `icon-${size}x${size}.png`)
  41         ).then(buf => buf.toString("base64"));
  42
  43         if (icon) {
  44           src = await sharp(icon)
  45             .resize(size, size)
  46             .png()
  47             .toBuffer()
  48             .then(buf => buf.toString("base64"));
  49         }
  50
  51         return {
  52           sizes: `${size}x${size}`,
  53           type: "image/png",
  54           src: `data:image/png;base64,${src}`,
  55           purpose: "any maskable",
  56         };
  57       })
  58     ),
  59     shortcuts: [
  60       {
  61         name: "Search",
  62         short_name: "Search",
  63         description: "Perform a search.",
  64         url: "/search",
  65       },
  66       {
  67         name: "Communities",
  68         url: "/communities",
  69         short_name: "Communities",
  70         description: "Browse communities",
  71       },
  72       {
  73         name: "Create Post",
  74         url: "/create_post",
  75         short_name: "Create Post",
  76         description: "Create a post.",
  77       },
  78     ].concat(
  79       my_user?.local_user_view.person.admin || !community_creation_admin_only
  80         ? [
  81             {
  82               name: "Create Community",
  83               url: "/create_community",
  84               short_name: "Create Community",
  85               description: "Create a community",
  86             },
  87           ]
  88         : []
  89     ),
  90     related_applications: [
  91       {
  92         platform: "f-droid",
  93         url: "https://f-droid.org/packages/com.jerboa/",
  94         id: "com.jerboa",
  95       },
  96     ],
  97   };
  98 }