mirror of
https://github.com/LemmyNet/lemmy-ui.git
synced 2024-12-23 11:21:26 +00:00
Merge pull request #1322 from alectrocute/refactor-server-tidy
Refactor/tidy server
This commit is contained in:
SleeplessOne1917
GitHub
commit
b19df45969
13 changed files with 494 additions and 439 deletions
116
src/server/handlers/catch-all-handler.tsx
Normal file
116
src/server/handlers/catch-all-handler.tsx
Normal file
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@ -0,0 +1,116 @@
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import type { Request, Response } from "express";
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import { StaticRouter, matchPath } from "inferno-router";
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import { renderToString } from "inferno-server";
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import IsomorphicCookie from "isomorphic-cookie";
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import { GetSite, GetSiteResponse, LemmyHttp } from "lemmy-js-client";
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import { App } from "../../shared/components/app/app";
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import { getHttpBaseInternal } from "../../shared/env";
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import {
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InitialFetchRequest,
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IsoDataOptionalSite,
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RouteData,
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} from "../../shared/interfaces";
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import { routes } from "../../shared/routes";
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import {
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FailedRequestState,
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wrapClient,
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} from "../../shared/services/HttpService";
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import { ErrorPageData, initializeSite, isAuthPath } from "../../shared/utils";
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import { createSsrHtml } from "../utils/create-ssr-html";
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import { getErrorPageData } from "../utils/get-error-page-data";
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import { setForwardedHeaders } from "../utils/set-forwarded-headers";
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export default async (req: Request, res: Response) => {
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try {
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const activeRoute = routes.find(route => matchPath(req.path, route));
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let auth: string | undefined = IsomorphicCookie.load("jwt", req);
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const getSiteForm: GetSite = { auth };
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const headers = setForwardedHeaders(req.headers);
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const client = wrapClient(new LemmyHttp(getHttpBaseInternal(), headers));
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const { path, url, query } = req;
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// Get site data first
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// This bypasses errors, so that the client can hit the error on its own,
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// in order to remove the jwt on the browser. Necessary for wrong jwts
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let site: GetSiteResponse | undefined = undefined;
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let routeData: RouteData = {};
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let errorPageData: ErrorPageData | undefined = undefined;
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let try_site = await client.getSite(getSiteForm);
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if (try_site.state === "failed" && try_site.msg == "not_logged_in") {
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console.error(
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"Incorrect JWT token, skipping auth so frontend can remove jwt cookie"
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);
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getSiteForm.auth = undefined;
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auth = undefined;
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try_site = await client.getSite(getSiteForm);
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}
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if (!auth && isAuthPath(path)) {
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return res.redirect("/login");
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}
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if (try_site.state === "success") {
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site = try_site.data;
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initializeSite(site);
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if (path !== "/setup" && !site.site_view.local_site.site_setup) {
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return res.redirect("/setup");
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}
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if (site && activeRoute?.fetchInitialData) {
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const initialFetchReq: InitialFetchRequest = {
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client,
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auth,
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path,
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query,
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site,
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};
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routeData = await activeRoute.fetchInitialData(initialFetchReq);
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}
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} else if (try_site.state === "failed") {
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errorPageData = getErrorPageData(new Error(try_site.msg), site);
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}
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const error = Object.values(routeData).find(
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res => res.state === "failed"
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) as FailedRequestState | undefined;
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// Redirect to the 404 if there's an API error
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if (error) {
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console.error(error.msg);
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if (error.msg === "instance_is_private") {
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return res.redirect(`/signup`);
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} else {
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errorPageData = getErrorPageData(new Error(error.msg), site);
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}
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}
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const isoData: IsoDataOptionalSite = {
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path,
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site_res: site,
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routeData,
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errorPageData,
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};
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const wrapper = (
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<StaticRouter location={url} context={isoData}>
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<App />
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</StaticRouter>
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);
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const root = renderToString(wrapper);
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res.send(await createSsrHtml(root, isoData));
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} catch (err) {
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// If an error is caught here, the error page couldn't even be rendered
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console.error(err);
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res.statusCode = 500;
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return res.send(
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process.env.NODE_ENV === "development" ? err.message : "Server error"
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);
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}
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};
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18
src/server/handlers/robots-handler.ts
Normal file
18
src/server/handlers/robots-handler.ts
Normal file
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@ -0,0 +1,18 @@
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import type { Response } from "express";
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export default async ({ res }: { res: Response }) => {
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res.setHeader("content-type", "text/plain; charset=utf-8");
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res.send(`User-Agent: *
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Disallow: /login
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Disallow: /settings
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Disallow: /create_community
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Disallow: /create_post
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Disallow: /create_private_message
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Disallow: /inbox
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Disallow: /setup
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Disallow: /admin
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Disallow: /password_change
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Disallow: /search/
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`);
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};
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14
src/server/handlers/service-worker-handler.ts
Normal file
14
src/server/handlers/service-worker-handler.ts
Normal file
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@ -0,0 +1,14 @@
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import type { Response } from "express";
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import path from "path";
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export default async ({ res }: { res: Response }) => {
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res
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.setHeader("Content-Type", "application/javascript")
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.sendFile(
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path.resolve(
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`./dist/service-worker${
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process.env.NODE_ENV === "development" ? "-development" : ""
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}.js`
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)
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);
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};
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32
src/server/handlers/theme-handler.ts
Normal file
32
src/server/handlers/theme-handler.ts
Normal file
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@ -0,0 +1,32 @@
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import type { Request, Response } from "express";
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import { existsSync } from "fs";
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import path from "path";
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const extraThemesFolder =
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process.env["LEMMY_UI_EXTRA_THEMES_FOLDER"] || "./extra_themes";
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export default async (req: Request, res: Response) => {
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res.contentType("text/css");
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const theme = req.params.name;
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if (!theme.endsWith(".css")) {
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res.statusCode = 400;
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res.send("Theme must be a css file");
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}
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const customTheme = path.resolve(`./${extraThemesFolder}/${theme}`);
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if (existsSync(customTheme)) {
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res.sendFile(customTheme);
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} else {
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const internalTheme = path.resolve(`./dist/assets/css/themes/${theme}`);
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// If the theme doesn't exist, just send litely
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if (existsSync(internalTheme)) {
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res.sendFile(internalTheme);
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} else {
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res.sendFile(path.resolve("./dist/assets/css/themes/litely.css"));
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}
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}
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};
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6
src/server/handlers/themes-list-handler.ts
Normal file
6
src/server/handlers/themes-list-handler.ts
Normal file
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@ -0,0 +1,6 @@
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import type { Response } from "express";
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import { buildThemeList } from "../utils/build-themes-list";
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export default async ({ res }: { res: Response }) => {
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res.type("json").send(JSON.stringify(await buildThemeList()));
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};
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@ -1,463 +1,38 @@
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import express from "express";
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import { existsSync } from "fs";
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import { readdir, readFile } from "fs/promises";
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import { IncomingHttpHeaders } from "http";
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import { Helmet } from "inferno-helmet";
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import { matchPath, StaticRouter } from "inferno-router";
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import { renderToString } from "inferno-server";
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import IsomorphicCookie from "isomorphic-cookie";
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import { GetSite, GetSiteResponse, LemmyHttp } from "lemmy-js-client";
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import path from "path";
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import process from "process";
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import serialize from "serialize-javascript";
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import sharp from "sharp";
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import { App } from "../shared/components/app/app";
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import { getHttpBaseExternal, getHttpBaseInternal } from "../shared/env";
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import {
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ILemmyConfig,
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InitialFetchRequest,
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IsoDataOptionalSite,
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RouteData,
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} from "../shared/interfaces";
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import { routes } from "../shared/routes";
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import { FailedRequestState, wrapClient } from "../shared/services/HttpService";
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import {
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ErrorPageData,
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favIconPngUrl,
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favIconUrl,
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initializeSite,
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isAuthPath,
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} from "../shared/utils";
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import CatchAllHandler from "./handlers/catch-all-handler";
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import RobotsHandler from "./handlers/robots-handler";
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import ServiceWorkerHandler from "./handlers/service-worker-handler";
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import ThemeHandler from "./handlers/theme-handler";
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import ThemesListHandler from "./handlers/themes-list-handler";
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import setDefaultCsp from "./middleware/set-default-csp";
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const server = express();
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const [hostname, port] = process.env["LEMMY_UI_HOST"]
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? process.env["LEMMY_UI_HOST"].split(":")
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: ["0.0.0.0", "1234"];
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const extraThemesFolder =
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process.env["LEMMY_UI_EXTRA_THEMES_FOLDER"] || "./extra_themes";
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if (!process.env["LEMMY_UI_DISABLE_CSP"] && !process.env["LEMMY_UI_DEBUG"]) {
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server.use(function (_req, res, next) {
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res.setHeader(
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"Content-Security-Policy",
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`default-src 'self'; manifest-src *; connect-src *; img-src * data:; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; form-action 'self'; base-uri 'self'; frame-src *; media-src *`
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);
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next();
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});
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}
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const customHtmlHeader = process.env["LEMMY_UI_CUSTOM_HTML_HEADER"] || "";
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server.use(express.json());
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server.use(express.urlencoded({ extended: false }));
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server.use("/static", express.static(path.resolve("./dist")));
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const robotstxt = `User-Agent: *
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Disallow: /login
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Disallow: /settings
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Disallow: /create_community
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Disallow: /create_post
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Disallow: /create_private_message
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Disallow: /inbox
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Disallow: /setup
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Disallow: /admin
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Disallow: /password_change
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Disallow: /search/
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`;
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server.get("/service-worker.js", async (_req, res) => {
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res.setHeader("Content-Type", "application/javascript");
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res.sendFile(
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path.resolve(
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`./dist/service-worker${
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process.env.NODE_ENV === "development" ? "-development" : ""
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}.js`
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)
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);
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});
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server.get("/robots.txt", async (_req, res) => {
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res.setHeader("content-type", "text/plain; charset=utf-8");
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res.send(robotstxt);
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});
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server.get("/css/themes/:name", async (req, res) => {
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res.contentType("text/css");
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const theme = req.params.name;
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if (!theme.endsWith(".css")) {
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res.statusCode = 400;
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res.send("Theme must be a css file");
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}
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const customTheme = path.resolve(`./${extraThemesFolder}/${theme}`);
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if (existsSync(customTheme)) {
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res.sendFile(customTheme);
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} else {
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const internalTheme = path.resolve(`./dist/assets/css/themes/${theme}`);
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// If the theme doesn't exist, just send litely
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if (existsSync(internalTheme)) {
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res.sendFile(internalTheme);
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} else {
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res.sendFile(path.resolve("./dist/assets/css/themes/litely.css"));
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}
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}
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});
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async function buildThemeList(): Promise<string[]> {
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const themes = ["darkly", "darkly-red", "litely", "litely-red"];
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if (existsSync(extraThemesFolder)) {
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const dirThemes = await readdir(extraThemesFolder);
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const cssThemes = dirThemes
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.filter(d => d.endsWith(".css"))
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.map(d => d.replace(".css", ""));
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themes.push(...cssThemes);
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}
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return themes;
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if (!process.env["LEMMY_UI_DISABLE_CSP"] && !process.env["LEMMY_UI_DEBUG"]) {
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server.use(setDefaultCsp);
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}
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server.get("/css/themelist", async (_req, res) => {
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res.type("json");
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res.send(JSON.stringify(await buildThemeList()));
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});
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// server.use(cookieParser());
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server.get("/*", async (req, res) => {
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try {
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const activeRoute = routes.find(route => matchPath(req.path, route));
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let auth: string | undefined = IsomorphicCookie.load("jwt", req);
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const getSiteForm: GetSite = { auth };
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const headers = setForwardedHeaders(req.headers);
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const client = wrapClient(new LemmyHttp(getHttpBaseInternal(), headers));
|
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|
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const { path, url, query } = req;
|
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|
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// Get site data first
|
||||
// This bypasses errors, so that the client can hit the error on its own,
|
||||
// in order to remove the jwt on the browser. Necessary for wrong jwts
|
||||
let site: GetSiteResponse | undefined = undefined;
|
||||
let routeData: RouteData = {};
|
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let errorPageData: ErrorPageData | undefined = undefined;
|
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let try_site = await client.getSite(getSiteForm);
|
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if (try_site.state === "failed" && try_site.msg == "not_logged_in") {
|
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console.error(
|
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"Incorrect JWT token, skipping auth so frontend can remove jwt cookie"
|
||||
);
|
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getSiteForm.auth = undefined;
|
||||
auth = undefined;
|
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try_site = await client.getSite(getSiteForm);
|
||||
}
|
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|
||||
if (!auth && isAuthPath(path)) {
|
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return res.redirect("/login");
|
||||
}
|
||||
|
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if (try_site.state === "success") {
|
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site = try_site.data;
|
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initializeSite(site);
|
||||
|
||||
if (path !== "/setup" && !site.site_view.local_site.site_setup) {
|
||||
return res.redirect("/setup");
|
||||
}
|
||||
|
||||
if (site && activeRoute?.fetchInitialData) {
|
||||
const initialFetchReq: InitialFetchRequest = {
|
||||
client,
|
||||
auth,
|
||||
path,
|
||||
query,
|
||||
site,
|
||||
};
|
||||
|
||||
routeData = await activeRoute.fetchInitialData(initialFetchReq);
|
||||
}
|
||||
} else if (try_site.state === "failed") {
|
||||
errorPageData = getErrorPageData(new Error(try_site.msg), site);
|
||||
}
|
||||
|
||||
const error = Object.values(routeData).find(
|
||||
res => res.state === "failed"
|
||||
) as FailedRequestState | undefined;
|
||||
|
||||
// Redirect to the 404 if there's an API error
|
||||
if (error) {
|
||||
console.error(error.msg);
|
||||
if (error.msg === "instance_is_private") {
|
||||
return res.redirect(`/signup`);
|
||||
} else {
|
||||
errorPageData = getErrorPageData(new Error(error.msg), site);
|
||||
}
|
||||
}
|
||||
|
||||
const isoData: IsoDataOptionalSite = {
|
||||
path,
|
||||
site_res: site,
|
||||
routeData,
|
||||
errorPageData,
|
||||
};
|
||||
|
||||
const wrapper = (
|
||||
<StaticRouter location={url} context={isoData}>
|
||||
<App />
|
||||
</StaticRouter>
|
||||
);
|
||||
|
||||
const root = renderToString(wrapper);
|
||||
|
||||
res.send(await createSsrHtml(root, isoData));
|
||||
} catch (err) {
|
||||
// If an error is caught here, the error page couldn't even be rendered
|
||||
console.error(err);
|
||||
res.statusCode = 500;
|
||||
return res.send(
|
||||
process.env.NODE_ENV === "development" ? err.message : "Server error"
|
||||
);
|
||||
}
|
||||
});
|
||||
server.get("/robots.txt", RobotsHandler);
|
||||
server.get("/service-worker.js", ServiceWorkerHandler);
|
||||
server.get("/css/themes/:name", ThemeHandler);
|
||||
server.get("/css/themelist", ThemesListHandler);
|
||||
server.get("/*", CatchAllHandler);
|
||||
|
||||
server.listen(Number(port), hostname, () => {
|
||||
console.log(`http://${hostname}:${port}`);
|
||||
});
|
||||
|
||||
function setForwardedHeaders(headers: IncomingHttpHeaders): {
|
||||
[key: string]: string;
|
||||
} {
|
||||
const out: { [key: string]: string } = {};
|
||||
if (headers.host) {
|
||||
out.host = headers.host;
|
||||
}
|
||||
const realIp = headers["x-real-ip"];
|
||||
if (realIp) {
|
||||
out["x-real-ip"] = realIp as string;
|
||||
}
|
||||
const forwardedFor = headers["x-forwarded-for"];
|
||||
if (forwardedFor) {
|
||||
out["x-forwarded-for"] = forwardedFor as string;
|
||||
}
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
process.on("SIGINT", () => {
|
||||
console.info("Interrupted");
|
||||
process.exit(0);
|
||||
});
|
||||
|
||||
const iconSizes = [72, 96, 144, 192, 512];
|
||||
const defaultLogoPathDirectory = path.join(
|
||||
process.cwd(),
|
||||
"dist",
|
||||
"assets",
|
||||
"icons"
|
||||
);
|
||||
|
||||
export async function generateManifestBase64({
|
||||
my_user,
|
||||
site_view: {
|
||||
site,
|
||||
local_site: { community_creation_admin_only },
|
||||
},
|
||||
}: GetSiteResponse) {
|
||||
const url = getHttpBaseExternal();
|
||||
|
||||
const icon = site.icon ? await fetchIconPng(site.icon) : null;
|
||||
|
||||
const manifest = {
|
||||
name: site.name,
|
||||
description: site.description ?? "A link aggregator for the fediverse",
|
||||
start_url: url,
|
||||
scope: url,
|
||||
display: "standalone",
|
||||
id: "/",
|
||||
background_color: "#222222",
|
||||
theme_color: "#222222",
|
||||
icons: await Promise.all(
|
||||
iconSizes.map(async size => {
|
||||
let src = await readFile(
|
||||
path.join(defaultLogoPathDirectory, `icon-${size}x${size}.png`)
|
||||
).then(buf => buf.toString("base64"));
|
||||
|
||||
if (icon) {
|
||||
src = await sharp(icon)
|
||||
.resize(size, size)
|
||||
.png()
|
||||
.toBuffer()
|
||||
.then(buf => buf.toString("base64"));
|
||||
}
|
||||
|
||||
return {
|
||||
sizes: `${size}x${size}`,
|
||||
type: "image/png",
|
||||
src: `data:image/png;base64,${src}`,
|
||||
purpose: "any maskable",
|
||||
};
|
||||
})
|
||||
),
|
||||
shortcuts: [
|
||||
{
|
||||
name: "Search",
|
||||
short_name: "Search",
|
||||
description: "Perform a search.",
|
||||
url: "/search",
|
||||
},
|
||||
{
|
||||
name: "Communities",
|
||||
url: "/communities",
|
||||
short_name: "Communities",
|
||||
description: "Browse communities",
|
||||
},
|
||||
]
|
||||
.concat(
|
||||
my_user
|
||||
? [
|
||||
{
|
||||
name: "Create Post",
|
||||
url: "/create_post",
|
||||
short_name: "Create Post",
|
||||
description: "Create a post.",
|
||||
},
|
||||
]
|
||||
: []
|
||||
)
|
||||
.concat(
|
||||
my_user?.local_user_view.person.admin || !community_creation_admin_only
|
||||
? [
|
||||
{
|
||||
name: "Create Community",
|
||||
url: "/create_community",
|
||||
short_name: "Create Community",
|
||||
description: "Create a community",
|
||||
},
|
||||
]
|
||||
: []
|
||||
),
|
||||
related_applications: [
|
||||
{
|
||||
platform: "f-droid",
|
||||
url: "https://f-droid.org/packages/com.jerboa/",
|
||||
id: "com.jerboa",
|
||||
},
|
||||
],
|
||||
};
|
||||
|
||||
return Buffer.from(JSON.stringify(manifest)).toString("base64");
|
||||
}
|
||||
|
||||
async function fetchIconPng(iconUrl: string) {
|
||||
return await fetch(iconUrl)
|
||||
.then(res => res.blob())
|
||||
.then(blob => blob.arrayBuffer());
|
||||
}
|
||||
|
||||
function getErrorPageData(error: Error, site?: GetSiteResponse) {
|
||||
const errorPageData: ErrorPageData = {};
|
||||
|
||||
if (site) {
|
||||
errorPageData.error = error.message;
|
||||
}
|
||||
|
||||
const adminMatrixIds = site?.admins
|
||||
.map(({ person: { matrix_user_id } }) => matrix_user_id)
|
||||
.filter(id => id) as string[] | undefined;
|
||||
if (adminMatrixIds && adminMatrixIds.length > 0) {
|
||||
errorPageData.adminMatrixIds = adminMatrixIds;
|
||||
}
|
||||
|
||||
return errorPageData;
|
||||
}
|
||||
|
||||
async function createSsrHtml(root: string, isoData: IsoDataOptionalSite) {
|
||||
const site = isoData.site_res;
|
||||
const appleTouchIcon = site?.site_view.site.icon
|
||||
? `data:image/png;base64,${sharp(
|
||||
await fetchIconPng(site.site_view.site.icon)
|
||||
)
|
||||
.resize(180, 180)
|
||||
.extend({
|
||||
bottom: 20,
|
||||
top: 20,
|
||||
left: 20,
|
||||
right: 20,
|
||||
background: "#222222",
|
||||
})
|
||||
.png()
|
||||
.toBuffer()
|
||||
.then(buf => buf.toString("base64"))}`
|
||||
: favIconPngUrl;
|
||||
|
||||
const erudaStr =
|
||||
process.env["LEMMY_UI_DEBUG"] === "true"
|
||||
? renderToString(
|
||||
<>
|
||||
<script src="//cdn.jsdelivr.net/npm/eruda"></script>
|
||||
<script>eruda.init();</script>
|
||||
</>
|
||||
)
|
||||
: "";
|
||||
|
||||
const helmet = Helmet.renderStatic();
|
||||
|
||||
const config: ILemmyConfig = { wsHost: process.env.LEMMY_UI_LEMMY_WS_HOST };
|
||||
|
||||
return `
|
||||
<!DOCTYPE html>
|
||||
<html ${helmet.htmlAttributes.toString()}>
|
||||
<head>
|
||||
<script>window.isoData = ${serialize(isoData)}</script>
|
||||
<script>window.lemmyConfig = ${serialize(config)}</script>
|
||||
|
||||
<!-- A remote debugging utility for mobile -->
|
||||
${erudaStr}
|
||||
|
||||
<!-- Custom injected script -->
|
||||
${customHtmlHeader}
|
||||
|
||||
${helmet.title.toString()}
|
||||
${helmet.meta.toString()}
|
||||
|
||||
<!-- Required meta tags -->
|
||||
<meta name="Description" content="Lemmy">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no">
|
||||
<link
|
||||
id="favicon"
|
||||
rel="shortcut icon"
|
||||
type="image/x-icon"
|
||||
href=${site?.site_view.site.icon ?? favIconUrl}
|
||||
/>
|
||||
|
||||
<!-- Web app manifest -->
|
||||
${
|
||||
site &&
|
||||
`<link
|
||||
rel="manifest"
|
||||
href=${`data:application/manifest+json;base64,${await generateManifestBase64(
|
||||
site
|
||||
)}`}
|
||||
/>`
|
||||
}
|
||||
<link rel="apple-touch-icon" href=${appleTouchIcon} />
|
||||
<link rel="apple-touch-startup-image" href=${appleTouchIcon} />
|
||||
|
||||
<!-- Styles -->
|
||||
<link rel="stylesheet" type="text/css" href="/static/styles/styles.css" />
|
||||
|
||||
<!-- Current theme and more -->
|
||||
${helmet.link.toString()}
|
||||
|
||||
</head>
|
||||
|
||||
<body ${helmet.bodyAttributes.toString()}>
|
||||
<noscript>
|
||||
<div class="alert alert-danger rounded-0" role="alert">
|
||||
<b>Javascript is disabled. Actions will not work.</b>
|
||||
</div>
|
||||
</noscript>
|
||||
|
||||
<div id='root'>${root}</div>
|
||||
<script defer src='/static/js/client.js'></script>
|
||||
</body>
|
||||
</html>
|
||||
`;
|
||||
}
|
||||
|
|
|
|||
10
src/server/middleware/set-default-csp.ts
Normal file
10
src/server/middleware/set-default-csp.ts
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
import type { NextFunction, Response } from "express";
|
||||
|
||||
export default function ({ res, next }: { res: Response; next: NextFunction }) {
|
||||
res.setHeader(
|
||||
"Content-Security-Policy",
|
||||
`default-src 'self'; manifest-src *; connect-src *; img-src * data:; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; form-action 'self'; base-uri 'self'; frame-src *; media-src *`
|
||||
);
|
||||
|
||||
next();
|
||||
}
|
||||
18
src/server/utils/build-themes-list.ts
Normal file
18
src/server/utils/build-themes-list.ts
Normal file
|
|
@ -0,0 +1,18 @@
|
|||
import { existsSync } from "fs";
|
||||
import { readdir } from "fs/promises";
|
||||
|
||||
const extraThemesFolder =
|
||||
process.env["LEMMY_UI_EXTRA_THEMES_FOLDER"] || "./extra_themes";
|
||||
|
||||
const themes = ["darkly", "darkly-red", "litely", "litely-red"];
|
||||
|
||||
export async function buildThemeList(): Promise<string[]> {
|
||||
if (existsSync(extraThemesFolder)) {
|
||||
const dirThemes = await readdir(extraThemesFolder);
|
||||
const cssThemes = dirThemes
|
||||
.filter(d => d.endsWith(".css"))
|
||||
.map(d => d.replace(".css", ""));
|
||||
themes.push(...cssThemes);
|
||||
}
|
||||
return themes;
|
||||
}
|
||||
109
src/server/utils/create-ssr-html.tsx
Normal file
109
src/server/utils/create-ssr-html.tsx
Normal file
|
|
@ -0,0 +1,109 @@
|
|||
import { Helmet } from "inferno-helmet";
|
||||
import { renderToString } from "inferno-server";
|
||||
import serialize from "serialize-javascript";
|
||||
import sharp from "sharp";
|
||||
import { ILemmyConfig, IsoDataOptionalSite } from "../../shared/interfaces";
|
||||
import { favIconPngUrl, favIconUrl } from "../../shared/utils";
|
||||
import { fetchIconPng } from "./fetch-icon-png";
|
||||
import { generateManifestBase64 } from "./generate-manifest-base64";
|
||||
|
||||
const customHtmlHeader = process.env["LEMMY_UI_CUSTOM_HTML_HEADER"] || "";
|
||||
|
||||
export async function createSsrHtml(
|
||||
root: string,
|
||||
isoData: IsoDataOptionalSite
|
||||
) {
|
||||
const site = isoData.site_res;
|
||||
|
||||
const appleTouchIcon = site?.site_view.site.icon
|
||||
? `data:image/png;base64,${sharp(
|
||||
await fetchIconPng(site.site_view.site.icon)
|
||||
)
|
||||
.resize(180, 180)
|
||||
.extend({
|
||||
bottom: 20,
|
||||
top: 20,
|
||||
left: 20,
|
||||
right: 20,
|
||||
background: "#222222",
|
||||
})
|
||||
.png()
|
||||
.toBuffer()
|
||||
.then(buf => buf.toString("base64"))}`
|
||||
: favIconPngUrl;
|
||||
|
||||
const erudaStr =
|
||||
process.env["LEMMY_UI_DEBUG"] === "true"
|
||||
? renderToString(
|
||||
<>
|
||||
<script src="//cdn.jsdelivr.net/npm/eruda"></script>
|
||||
<script>eruda.init();</script>
|
||||
</>
|
||||
)
|
||||
: "";
|
||||
|
||||
const helmet = Helmet.renderStatic();
|
||||
|
||||
const config: ILemmyConfig = { wsHost: process.env.LEMMY_UI_LEMMY_WS_HOST };
|
||||
|
||||
return `
|
||||
<!DOCTYPE html>
|
||||
<html ${helmet.htmlAttributes.toString()}>
|
||||
<head>
|
||||
<script>window.isoData = ${serialize(isoData)}</script>
|
||||
<script>window.lemmyConfig = ${serialize(config)}</script>
|
||||
|
||||
<!-- A remote debugging utility for mobile -->
|
||||
${erudaStr}
|
||||
|
||||
<!-- Custom injected script -->
|
||||
${customHtmlHeader}
|
||||
|
||||
${helmet.title.toString()}
|
||||
${helmet.meta.toString()}
|
||||
|
||||
<!-- Required meta tags -->
|
||||
<meta name="Description" content="Lemmy">
|
||||
<meta charset="utf-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no">
|
||||
<link
|
||||
id="favicon"
|
||||
rel="shortcut icon"
|
||||
type="image/x-icon"
|
||||
href=${site?.site_view.site.icon ?? favIconUrl}
|
||||
/>
|
||||
|
||||
<!-- Web app manifest -->
|
||||
${
|
||||
site &&
|
||||
`<link
|
||||
rel="manifest"
|
||||
href=${`data:application/manifest+json;base64,${await generateManifestBase64(
|
||||
site
|
||||
)}`}
|
||||
/>`
|
||||
}
|
||||
<link rel="apple-touch-icon" href=${appleTouchIcon} />
|
||||
<link rel="apple-touch-startup-image" href=${appleTouchIcon} />
|
||||
|
||||
<!-- Styles -->
|
||||
<link rel="stylesheet" type="text/css" href="/static/styles/styles.css" />
|
||||
|
||||
<!-- Current theme and more -->
|
||||
${helmet.link.toString()}
|
||||
|
||||
</head>
|
||||
|
||||
<body ${helmet.bodyAttributes.toString()}>
|
||||
<noscript>
|
||||
<div class="alert alert-danger rounded-0" role="alert">
|
||||
<b>Javascript is disabled. Actions will not work.</b>
|
||||
</div>
|
||||
</noscript>
|
||||
|
||||
<div id='root'>${root}</div>
|
||||
<script defer src='/static/js/client.js'></script>
|
||||
</body>
|
||||
</html>
|
||||
`;
|
||||
}
|
||||
5
src/server/utils/fetch-icon-png.ts
Normal file
5
src/server/utils/fetch-icon-png.ts
Normal file
|
|
@ -0,0 +1,5 @@
|
|||
export async function fetchIconPng(iconUrl: string) {
|
||||
return await fetch(iconUrl)
|
||||
.then(res => res.blob())
|
||||
.then(blob => blob.arrayBuffer());
|
||||
}
|
||||
107
src/server/utils/generate-manifest-base64.ts
Normal file
107
src/server/utils/generate-manifest-base64.ts
Normal file
|
|
@ -0,0 +1,107 @@
|
|||
import { readFile } from "fs/promises";
|
||||
import { GetSiteResponse } from "lemmy-js-client";
|
||||
import path from "path";
|
||||
import sharp from "sharp";
|
||||
import { getHttpBaseExternal } from "../../shared/env";
|
||||
import { fetchIconPng } from "./fetch-icon-png";
|
||||
|
||||
const iconSizes = [72, 96, 144, 192, 512];
|
||||
|
||||
const defaultLogoPathDirectory = path.join(
|
||||
process.cwd(),
|
||||
"dist",
|
||||
"assets",
|
||||
"icons"
|
||||
);
|
||||
|
||||
export async function generateManifestBase64({
|
||||
my_user,
|
||||
site_view: {
|
||||
site,
|
||||
local_site: { community_creation_admin_only },
|
||||
},
|
||||
}: GetSiteResponse) {
|
||||
const url = getHttpBaseExternal();
|
||||
|
||||
const icon = site.icon ? await fetchIconPng(site.icon) : null;
|
||||
|
||||
const manifest = {
|
||||
name: site.name,
|
||||
description: site.description ?? "A link aggregator for the fediverse",
|
||||
start_url: url,
|
||||
scope: url,
|
||||
display: "standalone",
|
||||
id: "/",
|
||||
background_color: "#222222",
|
||||
theme_color: "#222222",
|
||||
icons: await Promise.all(
|
||||
iconSizes.map(async size => {
|
||||
let src = await readFile(
|
||||
path.join(defaultLogoPathDirectory, `icon-${size}x${size}.png`)
|
||||
).then(buf => buf.toString("base64"));
|
||||
|
||||
if (icon) {
|
||||
src = await sharp(icon)
|
||||
.resize(size, size)
|
||||
.png()
|
||||
.toBuffer()
|
||||
.then(buf => buf.toString("base64"));
|
||||
}
|
||||
|
||||
return {
|
||||
sizes: `${size}x${size}`,
|
||||
type: "image/png",
|
||||
src: `data:image/png;base64,${src}`,
|
||||
purpose: "any maskable",
|
||||
};
|
||||
})
|
||||
),
|
||||
shortcuts: [
|
||||
{
|
||||
name: "Search",
|
||||
short_name: "Search",
|
||||
description: "Perform a search.",
|
||||
url: "/search",
|
||||
},
|
||||
{
|
||||
name: "Communities",
|
||||
url: "/communities",
|
||||
short_name: "Communities",
|
||||
description: "Browse communities",
|
||||
},
|
||||
]
|
||||
.concat(
|
||||
my_user
|
||||
? [
|
||||
{
|
||||
name: "Create Post",
|
||||
url: "/create_post",
|
||||
short_name: "Create Post",
|
||||
description: "Create a post.",
|
||||
},
|
||||
]
|
||||
: []
|
||||
)
|
||||
.concat(
|
||||
my_user?.local_user_view.person.admin || !community_creation_admin_only
|
||||
? [
|
||||
{
|
||||
name: "Create Community",
|
||||
url: "/create_community",
|
||||
short_name: "Create Community",
|
||||
description: "Create a community",
|
||||
},
|
||||
]
|
||||
: []
|
||||
),
|
||||
related_applications: [
|
||||
{
|
||||
platform: "f-droid",
|
||||
url: "https://f-droid.org/packages/com.jerboa/",
|
||||
id: "com.jerboa",
|
||||
},
|
||||
],
|
||||
};
|
||||
|
||||
return Buffer.from(JSON.stringify(manifest)).toString("base64");
|
||||
}
|
||||
20
src/server/utils/get-error-page-data.ts
Normal file
20
src/server/utils/get-error-page-data.ts
Normal file
|
|
@ -0,0 +1,20 @@
|
|||
import { GetSiteResponse } from "lemmy-js-client";
|
||||
import { ErrorPageData } from "../../shared/utils";
|
||||
|
||||
export function getErrorPageData(error: Error, site?: GetSiteResponse) {
|
||||
const errorPageData: ErrorPageData = {};
|
||||
|
||||
if (site) {
|
||||
errorPageData.error = error.message;
|
||||
}
|
||||
|
||||
const adminMatrixIds = site?.admins
|
||||
.map(({ person: { matrix_user_id } }) => matrix_user_id)
|
||||
.filter(id => id) as string[] | undefined;
|
||||
|
||||
if (adminMatrixIds && adminMatrixIds.length > 0) {
|
||||
errorPageData.adminMatrixIds = adminMatrixIds;
|
||||
}
|
||||
|
||||
return errorPageData;
|
||||
}
|
||||
25
src/server/utils/set-forwarded-headers.ts
Normal file
25
src/server/utils/set-forwarded-headers.ts
Normal file
|
|
@ -0,0 +1,25 @@
|
|||
import { IncomingHttpHeaders } from "http";
|
||||
|
||||
export function setForwardedHeaders(headers: IncomingHttpHeaders): {
|
||||
[key: string]: string;
|
||||
} {
|
||||
const out: { [key: string]: string } = {};
|
||||
|
||||
if (headers.host) {
|
||||
out.host = headers.host;
|
||||
}
|
||||
|
||||
const realIp = headers["x-real-ip"];
|
||||
|
||||
if (realIp) {
|
||||
out["x-real-ip"] = realIp as string;
|
||||
}
|
||||
|
||||
const forwardedFor = headers["x-forwarded-for"];
|
||||
|
||||
if (forwardedFor) {
|
||||
out["x-forwarded-for"] = forwardedFor as string;
|
||||
}
|
||||
|
||||
return out;
|
||||
}
|
||||
Loading…
Reference in a new issue