app.ts

1import type { Database } from "bun:sqlite";2import { join } from "node:path";3import { Hono } from "hono";4import { bodyLimit } from "hono/body-limit";5import { secureHeaders } from "hono/secure-headers";6import { registerStatus } from "../admin/console.ts";7import { registerIssues } from "../admin/issues.ts";8import { registerReleases } from "../admin/releases.ts";9import { registerRepos } from "../admin/repos.ts";10import { registerSite } from "../admin/site.ts";11import { openBucket } from "../bucket/reader.ts";12import { isSafePath } from "../bucket/repo.ts";13import { registerIssuePages } from "../issues/pages.ts";14import { registerArchivesPage } from "../pages/archives.ts";15import { registerDocsPages } from "../pages/docs.ts";16import { registerFileRoutes } from "../pages/files.ts";17import { registerFrontPages } from "../pages/front.ts";18import { registerHousekeeping } from "../pages/housekeeping.ts";19import { registerProfilePage } from "../pages/profile.ts";20import { registerReleasesPage } from "../pages/releases.ts";21import { registerRepoPage } from "../pages/repo.ts";22import { registerSavePage } from "../pages/save.ts";23import { registerReleaseRoutes } from "../releases/routes.ts";24import { registerTarballRoutes } from "../tarball/archive.ts";25import type { Config } from "./config.ts";26import { registerLogin } from "./login.ts";2728const MAX_BODY_BYTES = 64 * 1024;29const PUBLIC_DIR = join(import.meta.dir, "../../public");30// §18 allows Bunny Fonts: its stylesheet and the font files it points at.31const FONTS = "https://fonts.bunny.net";3233/** The Hono app with §25's headers and body cap, and every route built so far. */34export function createApp(config: Config, kepr: Database): Hono {35	const app = new Hono();36	// §25 allows images from the presigned host, which is the bucket endpoint's origin.37	const imgSrc =38		config.bucket.kind === "s3" ? ["'self'", new URL(config.bucket.endpoint).origin] : ["'self'"];39	app.use(40		secureHeaders({41			contentSecurityPolicy: {42				defaultSrc: ["'self'"],43				scriptSrc: ["'self'"],44				styleSrc: ["'self'", FONTS],45				fontSrc: [FONTS],46				imgSrc,47				objectSrc: ["'none'"],48				baseUri: ["'none'"],49				formAction: ["'self'"],50				frameAncestors: ["'none'"],51			},52			xFrameOptions: "DENY",53		}),54	);55	app.use(56		bodyLimit({ maxSize: MAX_BODY_BYTES, onError: (c) => c.text("Request body too large", 413) }),57	);58	// `/static/assets/` is the operator's uploads in `data/assets/` (§19), such as the signature.59	const assetsDir = join(config.dataDir, "assets");60	app.get("/static/:path{.+}", async (c) => {61		const path = c.req.param("path");62		const file = Bun.file(63			path.startsWith("assets/") ? join(assetsDir, path.slice(7)) : join(PUBLIC_DIR, path),64		);65		if (!isSafePath(path) || !(await file.exists())) return c.notFound();66		c.header("Cache-Control", "public, max-age=3600");67		return c.body(await file.bytes(), 200, { "Content-Type": file.type });68	});69	const ctx = { domain: config.domain, kepr, mirrorDir: join(config.dataDir, "mirror") };70	const bucket = openBucket(config.bucket);71	// Before every other route, so the admin guard runs ahead of each `/admin` handler.72	registerLogin(app, ctx, config.adminPasswordHash);73	const admin = {74		...ctx,75		dataDir: config.dataDir,76		sync: { bucket, kepr, mirrorDir: ctx.mirrorDir, tarballDir: join(config.dataDir, "tarballs") },77	};78	registerStatus(app, admin);79	registerRepos(app, admin);80	registerIssues(app, admin);81	registerReleases(app, admin);82	registerSite(app, admin);83	registerHousekeeping(app, ctx);84	registerFrontPages(app, ctx);85	registerDocsPages(app, ctx);86	registerProfilePage(app, ctx);87	registerRepoPage(app, ctx);88	registerFileRoutes(app, ctx);89	registerSavePage(app, ctx);90	registerArchivesPage(app, ctx);91	registerReleasesPage(app, ctx);92	registerIssuePages(app, ctx);93	registerTarballRoutes(app, ctx, join(config.dataDir, "tarballs"));94	registerReleaseRoutes(app, ctx, bucket);95	return app;96}