lemmy-ui/src/server/index.tsx

import setDefaultOptions from "date-fns/setDefaultOptions";
import express from "express";
import path from "path";
import process from "process";
import { I18NextService } from "../shared/services";
import CatchAllHandler from "./handlers/catch-all-handler";
import ManifestHandler from "./handlers/manifest-handler";
import RobotsHandler from "./handlers/robots-handler";
import ServiceWorkerHandler from "./handlers/service-worker-handler";
import ThemeHandler from "./handlers/theme-handler";
import ThemesListHandler from "./handlers/themes-list-handler";
import setDefaultCsp from "./middleware/set-default-csp";

const server = express();

const [hostname, port] = process.env["LEMMY_UI_HOST"]
  ? process.env["LEMMY_UI_HOST"].split(":")
  : ["0.0.0.0", "1234"];

server.use(express.json());
server.use(express.urlencoded({ extended: false }));
server.use("/static", express.static(path.resolve("./dist")));

if (!process.env["LEMMY_UI_DISABLE_CSP"] && !process.env["LEMMY_UI_DEBUG"]) {
  server.use(setDefaultCsp);
}

server.get("/robots.txt", RobotsHandler);
server.get("/service-worker.js", ServiceWorkerHandler);
server.get("/manifest.webmanifest", ManifestHandler);
server.get("/css/themes/:name", ThemeHandler);
server.get("/css/themelist", ThemesListHandler);
server.get("/*", CatchAllHandler);

server.listen(Number(port), hostname, () => {
  console.log(`http://${hostname}:${port}`);
});

process.on("SIGINT", async () => {
  const lang = I18NextService.i18n.language;
  const locale = (
    await import(
      /* webpackExclude: /\.js\.flow$/ */
      `date-fns/locale/${lang}`
    )
  ).default;
  setDefaultOptions({
    locale,
  });
  console.info("Interrupted");
  process.exit(0);
});