import { matchPath, StaticRouter } from "inferno-router";
import { renderToString } from "inferno-server";
import IsomorphicCookie from "isomorphic-cookie";
-import { GetSite, GetSiteResponse, LemmyHttp, Site } 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 { getHttpBase, getHttpBaseInternal } from "../shared/env";
+import { getHttpBaseExternal, getHttpBaseInternal } from "../shared/env";
import {
ILemmyConfig,
InitialFetchRequest,
- IsoData,
+ IsoDataOptionalSite,
} from "../shared/interfaces";
import { routes } from "../shared/routes";
+import {
+ FailedRequestState,
+ RequestState,
+ wrapClient,
+} from "../shared/services/HttpService";
import {
ErrorPageData,
favIconPngUrl,
initializeSite,
isAuthPath,
} from "../shared/utils";
-import { VERSION } from "../shared/version";
const server = express();
const [hostname, port] = process.env["LEMMY_UI_HOST"]
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 *`
+ `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();
});
server.get("/service-worker.js", async (_req, res) => {
res.setHeader("Content-Type", "application/javascript");
- res.sendFile(path.resolve("./dist/service-worker.js"));
+ res.sendFile(
+ path.resolve(
+ `./dist/service-worker${
+ process.env.NODE_ENV === "development" ? "-development" : ""
+ }.js`
+ )
+ );
});
server.get("/robots.txt", 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 getSiteForm: GetSite = { auth };
- const promises: Promise<any>[] = [];
-
const headers = setForwardedHeaders(req.headers);
- const client = new LemmyHttp(getHttpBaseInternal(), 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 try_site: any = await client.getSite(getSiteForm);
- if (try_site.error == "not_logged_in") {
+ let site: GetSiteResponse | undefined = undefined;
+ let routeData: Record<string, 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"
);
}
if (!auth && isAuthPath(path)) {
- res.redirect("/login");
- return;
+ return res.redirect("/login");
}
- const site: GetSiteResponse = try_site;
- initializeSite(site);
+ if (try_site.state === "success") {
+ site = try_site.data;
+ initializeSite(site);
- const initialFetchReq: InitialFetchRequest = {
- client,
- auth,
- path,
- query,
- site,
- };
+ if (path != "/setup" && !site.site_view.local_site.site_setup) {
+ return res.redirect("/setup");
+ }
- if (activeRoute?.fetchInitialData) {
- promises.push(...activeRoute.fetchInitialData(initialFetchReq));
- }
+ if (site) {
+ const initialFetchReq: InitialFetchRequest = {
+ client,
+ auth,
+ path,
+ query,
+ site,
+ };
- let routeData = await Promise.all(promises);
+ if (activeRoute?.fetchInitialData) {
+ const routeDataKeysAndVals = await Promise.all(
+ Object.entries(activeRoute.fetchInitialData(initialFetchReq)).map(
+ async ([key, val]) => [key, await val]
+ )
+ );
- // Redirect to the 404 if there's an API error
- if (routeData[0] && routeData[0].error) {
- const error = routeData[0].error;
- console.error(error);
- if (error === "instance_is_private") {
- return res.redirect(`/signup`);
- } else {
- const errorPageData: ErrorPageData = { type: "error" };
+ routeData = routeDataKeysAndVals.reduce((acc, [key, val]) => {
+ acc[key] = val;
- // Exact error should only be seen in a development environment. Users
- // in production will get a more generic message.
- if (VERSION === "dev") {
- errorPageData.error = error;
+ return acc;
+ }, {});
}
+ }
+ } else if (try_site.state === "failed") {
+ errorPageData = getErrorPageData(new Error(try_site.msg), site);
+ }
- const adminMatrixIds = site.admins
- .map(({ person: { matrix_user_id } }) => matrix_user_id)
- .filter(id => id) as string[];
- if (adminMatrixIds.length > 0) {
- errorPageData.adminMatrixIds = adminMatrixIds;
- }
+ const error = Object.values(routeData).find(
+ res => res.state === "failed"
+ ) as FailedRequestState | undefined;
- routeData = [errorPageData];
+ // 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: IsoData = {
+ const isoData: IsoDataOptionalSite = {
path,
site_res: site,
routeData,
+ errorPageData,
};
const wrapper = (
</StaticRouter>
);
- 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 helmet = Helmet.renderStatic();
-
- const config: ILemmyConfig = { wsHost: process.env.LEMMY_UI_LEMMY_WS_HOST };
- 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;
-
- res.send(`
- <!DOCTYPE html>
- <html ${helmet.htmlAttributes.toString()} lang="en">
- <head>
- <script>window.isoData = ${JSON.stringify(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 -->
- <link rel="manifest" href="data:application/manifest+json;base64,${await generateManifestBase64(
- site.site_view.site
- )}">
- <link rel="apple-touch-icon" href=${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>
-`);
+ 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(VERSION === "dev" ? err.message : "Server error");
+ return res.send(
+ process.env.NODE_ENV === "development" ? err.message : "Server error"
+ );
}
});
function setForwardedHeaders(headers: IncomingHttpHeaders): {
[key: string]: string;
} {
- let out: { [key: string]: string } = {};
+ const out: { [key: string]: string } = {};
if (headers.host) {
out.host = headers.host;
}
- let realIp = headers["x-real-ip"];
+ const realIp = headers["x-real-ip"];
if (realIp) {
out["x-real-ip"] = realIp as string;
}
- let forwardedFor = headers["x-forwarded-for"];
+ const forwardedFor = headers["x-forwarded-for"];
if (forwardedFor) {
out["x-forwarded-for"] = forwardedFor as string;
}
process.exit(0);
});
-const iconSizes = [72, 96, 128, 144, 152, 192, 384, 512];
+const iconSizes = [72, 96, 144, 192, 512];
const defaultLogoPathDirectory = path.join(
process.cwd(),
"dist",
"icons"
);
-export async function generateManifestBase64(site: Site) {
- const url = (
- process.env.NODE_ENV === "development"
- ? "http://localhost:1236/"
- : getHttpBase()
- ).replace(/\/$/g, "");
+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 = {
};
})
),
+ 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.replace(/https?:\/\/localhost:\d+/g, getHttpBaseInternal())
- )
+ 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>
+`;
+}