--- /dev/null
+import type { Request, Response } from "express";
+import { StaticRouter, matchPath } from "inferno-router";
+import { renderToString } from "inferno-server";
+import IsomorphicCookie from "isomorphic-cookie";
+import { GetSite, GetSiteResponse, LemmyHttp } from "lemmy-js-client";
+import { App } from "../../shared/components/app/app";
+import { getHttpBaseInternal } from "../../shared/env";
+import {
+ InitialFetchRequest,
+ IsoDataOptionalSite,
+} from "../../shared/interfaces";
+import { routes } from "../../shared/routes";
+import { RequestState, wrapClient } from "../../shared/services/HttpService";
+import { ErrorPageData, initializeSite, isAuthPath } from "../../shared/utils";
+import { createSsrHtml } from "../utils/create-ssr-html";
+import { getErrorPageData } from "../utils/get-error-page-data";
+import { setForwardedHeaders } from "../utils/set-forwarded-headers";
+
+export default async (req: Request, res: Response) => {
+ try {
+ const activeRoute = routes.find(route => matchPath(req.path, route));
+ let auth: string | undefined = IsomorphicCookie.load("jwt", req);
+
+ const getSiteForm: GetSite = { auth };
+
+ const headers = setForwardedHeaders(req.headers);
+ const client = wrapClient(new LemmyHttp(getHttpBaseInternal(), headers));
+
+ const { path, url, query } = req;
+
+ // 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;
+ const routeData: RequestState<any>[] = [];
+ let errorPageData: ErrorPageData | undefined = undefined;
+ let try_site = await client.getSite(getSiteForm);
+ if (try_site.state === "failed" && try_site.msg == "not_logged_in") {
+ console.error(
+ "Incorrect JWT token, skipping auth so frontend can remove jwt cookie"
+ );
+ getSiteForm.auth = undefined;
+ auth = undefined;
+ try_site = await client.getSite(getSiteForm);
+ }
+
+ if (!auth && isAuthPath(path)) {
+ return res.redirect("/login");
+ }
+
+ if (try_site.state === "success") {
+ site = try_site.data;
+ initializeSite(site);
+
+ if (path !== "/setup" && !site.site_view.local_site.site_setup) {
+ return res.redirect("/setup");
+ }
+
+ if (site) {
+ const initialFetchReq: InitialFetchRequest = {
+ client,
+ auth,
+ path,
+ query,
+ site,
+ };
+
+ if (activeRoute?.fetchInitialData) {
+ routeData.push(
+ ...(await Promise.all([
+ ...activeRoute.fetchInitialData(initialFetchReq),
+ ]))
+ );
+ }
+ }
+ } else if (try_site.state === "failed") {
+ errorPageData = getErrorPageData(new Error(try_site.msg), site);
+ }
+
+ // Redirect to the 404 if there's an API error
+ if (routeData[0] && routeData[0].state === "failed") {
+ const error = routeData[0].msg;
+ console.error(error);
+ if (error === "instance_is_private") {
+ return res.redirect(`/signup`);
+ } else {
+ errorPageData = getErrorPageData(new Error(error), 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"
+ );
+ }
+};
import express from "express";
-import { existsSync } from "fs";
-import { readdir, readFile } from "fs/promises";
-import { IncomingHttpHeaders } from "http";
-import { Helmet } from "inferno-helmet";
-import { matchPath, StaticRouter } from "inferno-router";
-import { renderToString } from "inferno-server";
-import IsomorphicCookie from "isomorphic-cookie";
-import { GetSite, GetSiteResponse, LemmyHttp } from "lemmy-js-client";
import path from "path";
import process from "process";
-import serialize from "serialize-javascript";
-import sharp from "sharp";
-import { App } from "../shared/components/app/app";
-import { getHttpBaseExternal, getHttpBaseInternal } from "../shared/env";
-import {
- ILemmyConfig,
- InitialFetchRequest,
- IsoDataOptionalSite,
-} from "../shared/interfaces";
-import { routes } from "../shared/routes";
-import { RequestState, wrapClient } from "../shared/services/HttpService";
-import {
- ErrorPageData,
- favIconPngUrl,
- favIconUrl,
- initializeSite,
- isAuthPath,
-} from "../shared/utils";
+import CatchAllHandler from "./handlers/catch-all-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"];
-const extraThemesFolder =
- process.env["LEMMY_UI_EXTRA_THEMES_FOLDER"] || "./extra_themes";
-
-if (!process.env["LEMMY_UI_DISABLE_CSP"] && !process.env["LEMMY_UI_DEBUG"]) {
- server.use(function (_req, res, next) {
- 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();
- });
-}
-const customHtmlHeader = process.env["LEMMY_UI_CUSTOM_HTML_HEADER"] || "";
server.use(express.json());
server.use(express.urlencoded({ extended: false }));
server.use("/static", express.static(path.resolve("./dist")));
-const robotstxt = `User-Agent: *
-Disallow: /login
-Disallow: /settings
-Disallow: /create_community
-Disallow: /create_post
-Disallow: /create_private_message
-Disallow: /inbox
-Disallow: /setup
-Disallow: /admin
-Disallow: /password_change
-Disallow: /search/
-`;
-
-server.get("/service-worker.js", async (_req, res) => {
- res.setHeader("Content-Type", "application/javascript");
- res.sendFile(
- path.resolve(
- `./dist/service-worker${
- process.env.NODE_ENV === "development" ? "-development" : ""
- }.js`
- )
- );
-});
-
-server.get("/robots.txt", async (_req, res) => {
- res.setHeader("content-type", "text/plain; charset=utf-8");
- res.send(robotstxt);
-});
-
-server.get("/css/themes/:name", async (req, res) => {
- res.contentType("text/css");
- const theme = req.params.name;
- if (!theme.endsWith(".css")) {
- res.statusCode = 400;
- res.send("Theme must be a css file");
- }
-
- const customTheme = path.resolve(`./${extraThemesFolder}/${theme}`);
- if (existsSync(customTheme)) {
- res.sendFile(customTheme);
- } else {
- const internalTheme = path.resolve(`./dist/assets/css/themes/${theme}`);
-
- // If the theme doesn't exist, just send litely
- if (existsSync(internalTheme)) {
- res.sendFile(internalTheme);
- } else {
- res.sendFile(path.resolve("./dist/assets/css/themes/litely.css"));
- }
- }
-});
-
-async function buildThemeList(): Promise<string[]> {
- const themes = ["darkly", "darkly-red", "litely", "litely-red"];
- 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;
+if (!process.env["LEMMY_UI_DISABLE_CSP"] && !process.env["LEMMY_UI_DEBUG"]) {
+ server.use(setDefaultCsp);
}
-server.get("/css/themelist", async (_req, res) => {
- res.type("json");
- res.send(JSON.stringify(await buildThemeList()));
-});
-
-// server.use(cookieParser());
-server.get("/*", async (req, res) => {
- try {
- const activeRoute = routes.find(route => matchPath(req.path, route));
- let auth: string | undefined = IsomorphicCookie.load("jwt", req);
-
- const getSiteForm: GetSite = { auth };
-
- const headers = setForwardedHeaders(req.headers);
- const client = wrapClient(new LemmyHttp(getHttpBaseInternal(), headers));
-
- const { path, url, query } = req;
-
- // 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;
- const routeData: RequestState<any>[] = [];
- let errorPageData: ErrorPageData | undefined = undefined;
- let try_site = await client.getSite(getSiteForm);
- if (try_site.state === "failed" && try_site.msg == "not_logged_in") {
- console.error(
- "Incorrect JWT token, skipping auth so frontend can remove jwt cookie"
- );
- getSiteForm.auth = undefined;
- auth = undefined;
- try_site = await client.getSite(getSiteForm);
- }
-
- if (!auth && isAuthPath(path)) {
- return res.redirect("/login");
- }
-
- if (try_site.state === "success") {
- site = try_site.data;
- initializeSite(site);
-
- if (path !== "/setup" && !site.site_view.local_site.site_setup) {
- return res.redirect("/setup");
- }
-
- if (site) {
- const initialFetchReq: InitialFetchRequest = {
- client,
- auth,
- path,
- query,
- site,
- };
-
- if (activeRoute?.fetchInitialData) {
- routeData.push(
- ...(await Promise.all([
- ...activeRoute.fetchInitialData(initialFetchReq),
- ]))
- );
- }
- }
- } else if (try_site.state === "failed") {
- errorPageData = getErrorPageData(new Error(try_site.msg), site);
- }
-
- // Redirect to the 404 if there's an API error
- if (routeData[0] && routeData[0].state === "failed") {
- const error = routeData[0].msg;
- console.error(error);
- if (error === "instance_is_private") {
- return res.redirect(`/signup`);
- } else {
- errorPageData = getErrorPageData(new Error(error), 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>
-`;
-}
--- /dev/null
+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>
+ `;
+}
projects / lemmy-ui.git / commitdiff