Initial commit

app/api/files/get/route.ts

@@ -0,0 +1,50 @@
+import { NextResponse } from "next/server";
+import fs from "node:fs/promises";
+import path from "node:path";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+const BASE = "/app/files";
+
+function safeJoin(base: string, reqPath: string) {
+  const rel = reqPath.startsWith("/") ? reqPath : `/${reqPath}`;
+  const full = path.resolve(base, "." + rel);
+  if (!full.startsWith(base)) throw new Error("Outside base");
+  return full;
+}
+
+const CONTENT_MAP: Record<string, string> = {
+  ".png": "image/png",
+  ".jpg": "image/jpeg",
+  ".jpeg": "image/jpeg",
+  ".gif": "image/gif",
+  ".webp": "image/webp",
+  ".svg": "image/svg+xml",
+  ".txt": "text/plain; charset=utf-8",
+  ".json": "application/json; charset=utf-8",
+  ".pdf": "application/pdf",
+};
+
+export async function GET(req: Request) {
+  try {
+    const url = new URL(req.url);
+    const reqPath = url.searchParams.get("path");
+    if (!reqPath) return NextResponse.json({ error: "Missing path" }, { status: 400 });
+
+    const full = safeJoin(BASE, reqPath);
+    const stat = await fs.stat(full);
+    if (!stat.isFile()) return NextResponse.json({ error: "Not a file" }, { status: 400 });
+
+    const data = await fs.readFile(full);
+    const ext = path.extname(full).toLowerCase();
+    const type = CONTENT_MAP[ext] ?? "application/octet-stream";
+
+    return new NextResponse(data, {
+      status: 200,
+      headers: { "Content-Type": type, "Cache-Control": "public, max-age=300" },
+    });
+  } catch (e: any) {
+    return NextResponse.json({ error: e?.message ?? "Unknown" }, { status: 400 });
+  }
+}