-import { None, Option } from "@sniptt/monads";
-import { serialize as serializeO } from "class-transformer";
import express from "express";
-import fs from "fs";
+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, toOption } from "lemmy-js-client";
+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 { SYMBOLS } from "../shared/components/common/symbols";
-import { httpBaseInternal } from "../shared/env";
+import { getHttpBaseExternal, getHttpBaseInternal } from "../shared/env";
import {
ILemmyConfig,
InitialFetchRequest,
- IsoData,
+ IsoDataOptionalSite,
} from "../shared/interfaces";
import { routes } from "../shared/routes";
-import { initializeSite } from "../shared/utils";
+import { RequestState, wrapClient } from "../shared/services/HttpService";
+import {
+ ErrorPageData,
+ favIconPngUrl,
+ favIconUrl,
+ initializeSite,
+ isAuthPath,
+} from "../shared/utils";
const server = express();
const [hostname, port] = process.env["LEMMY_UI_HOST"]
const extraThemesFolder =
process.env["LEMMY_UI_EXTRA_THEMES_FOLDER"] || "./extra_themes";
-if (!process.env["LEMMY_UI_DISABLE_CSP"]) {
+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 'none'; connect-src *; img-src * data:; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; form-action 'self'; base-uri 'self'`
+ `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();
});
Disallow: /search/
`;
+server.get("/service-worker.js", async (_req, res) => {
+ res.setHeader("Content-Type", "application/javascript");
+ res.sendFile(
+ path.resolve(
+ `./dist/service-worker${
+ process.env.NODE_ENV === "development" ? "-development" : ""
+ }.js`
+ )
+ );
+});
+
server.get("/robots.txt", async (_req, res) => {
res.setHeader("content-type", "text/plain; charset=utf-8");
res.send(robotstxt);
res.contentType("text/css");
const theme = req.params.name;
if (!theme.endsWith(".css")) {
+ res.statusCode = 400;
res.send("Theme must be a css file");
}
const customTheme = path.resolve(`./${extraThemesFolder}/${theme}`);
- if (fs.existsSync(customTheme)) {
+ if (existsSync(customTheme)) {
res.sendFile(customTheme);
} else {
const internalTheme = path.resolve(`./dist/assets/css/themes/${theme}`);
- res.sendFile(internalTheme);
+
+ // 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"));
+ }
}
});
-function buildThemeList(): string[] {
- let themes = [
- "litera",
- "materia",
- "minty",
- "solar",
- "united",
- "cyborg",
- "darkly",
- "darkly-red",
- "journal",
- "sketchy",
- "vaporwave",
- "vaporwave-dark",
- "i386",
- "litely",
- "litely-red",
- "nord",
- ];
- if (fs.existsSync(extraThemesFolder)) {
- let dirThemes = fs.readdirSync(extraThemesFolder);
- let cssThemes = dirThemes
+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);
server.get("/css/themelist", async (_req, res) => {
res.type("json");
- res.send(JSON.stringify(buildThemeList()));
+ res.send(JSON.stringify(await buildThemeList()));
});
// server.use(cookieParser());
server.get("/*", async (req, res) => {
try {
- const activeRoute = routes.find(route => matchPath(req.path, route)) || {};
- const context = {} as any;
- let auth: Option<string> = toOption(IsomorphicCookie.load("jwt", req));
-
- let getSiteForm = new GetSite({ auth });
+ const activeRoute = routes.find(route => matchPath(req.path, route));
+ let auth: string | undefined = IsomorphicCookie.load("jwt", req);
- let promises: Promise<any>[] = [];
+ const getSiteForm: GetSite = { auth };
- let headers = setForwardedHeaders(req.headers);
+ const headers = setForwardedHeaders(req.headers);
+ const client = wrapClient(new LemmyHttp(getHttpBaseInternal(), headers));
- let initialFetchReq: InitialFetchRequest = {
- client: new LemmyHttp(httpBaseInternal, headers),
- auth,
- path: req.path,
- };
+ 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 try_site: any = await initialFetchReq.client.getSite(getSiteForm);
- if (try_site.error == "not_logged_in") {
+ 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 = None;
- initialFetchReq.auth = None;
- try_site = await initialFetchReq.client.getSite(getSiteForm);
+ getSiteForm.auth = undefined;
+ auth = undefined;
+ try_site = await client.getSite(getSiteForm);
}
- let site: GetSiteResponse = try_site;
- initializeSite(site);
- if (activeRoute.fetchInitialData) {
- promises.push(...activeRoute.fetchInitialData(initialFetchReq));
+ if (!auth && isAuthPath(path)) {
+ return res.redirect("/login");
}
- let routeData = await Promise.all(promises);
+ 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].error) {
- let errCode = routeData[0].error;
- console.error(errCode);
- if (errCode == "instance_is_private") {
+ 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 {
- return res.send(`404: ${removeAuthParam(errCode)}`);
+ errorPageData = getErrorPageData(new Error(error), site);
}
}
- let isoData: IsoData = {
- path: req.path,
+ const isoData: IsoDataOptionalSite = {
+ path,
site_res: site,
routeData,
+ errorPageData,
};
const wrapper = (
- <StaticRouter location={req.url} context={isoData}>
+ <StaticRouter location={url} context={isoData}>
<App />
</StaticRouter>
);
- if (context.url) {
- return res.redirect(context.url);
- }
- const eruda = (
- <>
- <script src="//cdn.jsdelivr.net/npm/eruda"></script>
- <script>eruda.init();</script>
- </>
- );
- const erudaStr = process.env["LEMMY_UI_DEBUG"] ? renderToString(eruda) : "";
const root = renderToString(wrapper);
- const symbols = renderToString(SYMBOLS);
- const helmet = Helmet.renderStatic();
-
- const config: ILemmyConfig = { wsHost: process.env.LEMMY_WS_HOST };
-
- res.send(`
- <!DOCTYPE html>
- <html ${helmet.htmlAttributes.toString()} lang="en">
- <head>
- <script>window.isoData = ${serializeO(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">
-
- <!-- Web app manifest -->
- <link rel="manifest" href="/static/assets/manifest.webmanifest">
-
- <!-- Styles -->
- <link rel="stylesheet" type="text/css" href="/static/styles/styles.css" />
-
- <!-- Current theme and more -->
- ${helmet.link.toString()}
-
- <!-- Icons -->
- ${symbols}
-
- </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>
-`);
+
+ 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);
- return res.send(`404: ${removeAuthParam(err)}`);
+ res.statusCode = 500;
+ return res.send(
+ process.env.NODE_ENV === "development" ? err.message : "Server error"
+ );
}
});
function setForwardedHeaders(headers: IncomingHttpHeaders): {
[key: string]: string;
} {
- let out = {
- host: headers.host,
- };
- if (headers["x-real-ip"]) {
- out["x-real-ip"] = headers["x-real-ip"];
+ const out: { [key: string]: string } = {};
+ if (headers.host) {
+ out.host = headers.host;
+ }
+ const realIp = headers["x-real-ip"];
+ if (realIp) {
+ out["x-real-ip"] = realIp as string;
}
- if (headers["x-forwarded-for"]) {
- out["x-forwarded-for"] = headers["x-forwarded-for"];
+ const forwardedFor = headers["x-forwarded-for"];
+ if (forwardedFor) {
+ out["x-forwarded-for"] = forwardedFor as string;
}
return out;
process.exit(0);
});
-function removeAuthParam(err: any): string {
- return removeParam(err.toString(), "auth");
+const iconSizes = [72, 96, 144, 192, 512];
+const defaultLogoPathDirectory = path.join(
+ process.cwd(),
+ "dist",
+ "assets",
+ "icons"
+);
+
+export async function generateManifestBase64({
+ my_user,
+ site_view: {
+ site,
+ local_site: { community_creation_admin_only },
+ },
+}: GetSiteResponse) {
+ const url = getHttpBaseExternal();
+
+ const icon = site.icon ? await fetchIconPng(site.icon) : null;
+
+ const manifest = {
+ name: site.name,
+ description: site.description ?? "A link aggregator for the fediverse",
+ start_url: url,
+ scope: url,
+ display: "standalone",
+ id: "/",
+ background_color: "#222222",
+ theme_color: "#222222",
+ icons: await Promise.all(
+ iconSizes.map(async size => {
+ let src = await readFile(
+ path.join(defaultLogoPathDirectory, `icon-${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");
}
-function removeParam(url: string, parameter: string): string {
- return url
- .replace(new RegExp("[?&]" + parameter + "=[^&#]*(#.*)?$"), "$1")
- .replace(new RegExp("([?&])" + parameter + "=[^&]*&"), "$1");
+async function fetchIconPng(iconUrl: string) {
+ return await fetch(iconUrl)
+ .then(res => res.blob())
+ .then(blob => blob.arrayBuffer());
+}
+
+function getErrorPageData(error: Error, site?: GetSiteResponse) {
+ const errorPageData: ErrorPageData = {};
+
+ if (site) {
+ errorPageData.error = error.message;
+ }
+
+ const adminMatrixIds = site?.admins
+ .map(({ person: { matrix_user_id } }) => matrix_user_id)
+ .filter(id => id) as string[] | undefined;
+ if (adminMatrixIds && adminMatrixIds.length > 0) {
+ errorPageData.adminMatrixIds = adminMatrixIds;
+ }
+
+ return errorPageData;
+}
+
+async function createSsrHtml(root: string, isoData: IsoDataOptionalSite) {
+ const site = isoData.site_res;
+ const appleTouchIcon = site?.site_view.site.icon
+ ? `data:image/png;base64,${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()}
+ ${helmet.meta.toString()}
+
+ <!-- Required meta tags -->
+ <meta name="Description" content="Lemmy">
+ <meta charset="utf-8">
+ <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+ <link
+ id="favicon"
+ rel="shortcut icon"
+ type="image/x-icon"
+ href=${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 / blobdiff