44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
import { stat } from "fs/promises";
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import { createReadStream } from "fs";
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import path from "path";
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export const dynamic = "force-dynamic";
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export const revalidate = 0;
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const ROOT = process.env.FILES_ROOT || "/app/files";
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function safeJoin(root: string, p: string) {
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const raw = path.normalize("/" + (p || "/"));
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const abs = path.resolve(root, "." + raw);
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if (!abs.startsWith(path.resolve(root))) throw new Error("Invalid path");
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return abs;
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}
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export async function GET(req: Request) {
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try {
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const { searchParams } = new URL(req.url);
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const p = searchParams.get("path");
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if (!p) return new Response(JSON.stringify({ error: "Missing path" }), { status: 400 });
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const abs = safeJoin(ROOT, p);
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const s = await stat(abs);
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if (s.isDirectory()) {
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return new Response(JSON.stringify({ error: "Is a directory" }), { status: 400 });
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}
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const stream = createReadStream(abs);
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const fileName = path.basename(abs);
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return new Response(stream as any, {
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headers: {
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"Content-Type": "application/octet-stream",
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"Content-Length": String(s.size),
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"Content-Disposition": `attachment; filename*=UTF-8''${encodeURIComponent(fileName)}`,
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"Cache-Control": "no-store",
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}
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});
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} catch (e: any) {
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const msg = e?.message || "Not found";
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const code = msg === "Invalid path" ? 400 : 404;
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return new Response(JSON.stringify({ error: msg }), { status: code, headers: { "Cache-Control": "no-store" } });
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}
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}
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