Release flow Tools v0.1.0

2026-09-01 14:10:51 +02:00
commit 12d0ac0155
58 changed files with 8809 additions and 0 deletions
@@ -0,0 +1,47 @@
+import { createServer } from "node:http";
+import { readFile, stat } from "node:fs/promises";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+const root = path.resolve(
+    path.dirname(fileURLToPath(import.meta.url)),
+    "..",
+    "dist",
+  ),
+  prefix = "/deep/nested/flow/",
+  types = new Map([
+    [".css", "text/css"],
+    [".html", "text/html"],
+    [".js", "text/javascript"],
+    [".json", "application/json"],
+    [".webmanifest", "application/manifest+json"],
+    [".svg", "image/svg+xml"],
+    [".md", "text/markdown"],
+    [".txt", "text/plain"],
+  ]),
+  headers = {
+    "Content-Security-Policy":
+      "default-src 'self';base-uri 'self';object-src 'none';script-src 'self';style-src 'self' 'unsafe-inline';img-src 'self' data: blob:;connect-src 'self';worker-src 'self' blob:;manifest-src 'self'",
+    "Permissions-Policy": "camera=(),microphone=(),geolocation=()",
+    "Referrer-Policy": "no-referrer",
+    "X-Content-Type-Options": "nosniff",
+  };
+createServer(async (q, s) => {
+  try {
+    const u = new URL(q.url ?? "/", "http://x"),
+      d = decodeURIComponent(u.pathname),
+      r = d.startsWith(prefix) ? d.slice(prefix.length) : d.replace(/^\/+/, ""),
+      n = path.posix.normalize(r || "index.html");
+    if (n.startsWith("../") || path.isAbsolute(n))
+      return void s.writeHead(400).end();
+    let f = path.join(root, n);
+    if ((await stat(f).catch(() => null))?.isDirectory())
+      f = path.join(f, "index.html");
+    s.writeHead(200, {
+      "Content-Type": types.get(path.extname(f)) ?? "application/octet-stream",
+      ...headers,
+    });
+    s.end(await readFile(f));
+  } catch {
+    s.writeHead(404).end();
+  }
+}).listen(4221, "127.0.0.1", () => console.log("ready"));