Initial local backup snapshot

server/storage.ts

@@ -0,0 +1,39 @@
+import fs from "node:fs/promises";
+import path from "node:path";
+
+function normalizeKey(relKey: string): string {
+  return relKey
+    .replace(/^\/+/, "")
+    .split("/")
+    .filter(Boolean)
+    .map(segment => segment.replace(/[^a-zA-Z0-9._-]/g, "_"))
+    .join("/");
+}
+
+function getUploadRoot() {
+  return path.resolve(process.cwd(), "uploads");
+}
+
+function getPublicUrl(key: string) {
+  return `/uploads/${key}`;
+}
+
+export async function storagePut(
+  relKey: string,
+  data: Buffer | Uint8Array | string,
+  contentType = "application/octet-stream"
+): Promise<{ key: string; url: string }> {
+  const key = normalizeKey(relKey);
+  const filePath = path.join(getUploadRoot(), key);
+  await fs.mkdir(path.dirname(filePath), { recursive: true });
+  await fs.writeFile(filePath, data);
+  return { key, url: getPublicUrl(key) };
+}
+
+export async function storageGet(relKey: string): Promise<{ key: string; url: string; }> {
+  const key = normalizeKey(relKey);
+  return {
+    key,
+    url: getPublicUrl(key),
+  };
+}