Function handler

website/api/gitlab-zip.ts:63–112

(req: any, res: any)

}

export default async function handler(req: any, res: any) {
  if (req.method !== "GET" && req.method !== "HEAD") {
    return res.status(405).json({ error: "Method not allowed" });
  }

  const rawUrl = req.url || "";
  const urlPath = rawUrl.split("?")[0];
  let parsed = parseGitlabZipPath(urlPath);

  if (!parsed && req.query?.project && req.query?.branch) {
    let project = String(req.query.project);
    try {
      project = decodeURIComponent(project);
    } catch {
      // keep raw value
    }
    parsed = { project, branch: String(req.query.branch) };
  }

  if (!parsed) {
    return res.status(400).json({ error: "Expected /api/gitlab-zip/:project/:branch" });
  }

  const token =
    (typeof req.headers?.["x-gitlab-token"] === "string" && req.headers["x-gitlab-token"]) ||
    (typeof req.headers?.["private-token"] === "string" && req.headers["private-token"]) ||
    undefined;

  try {
    const upstream = await fetchGitlabArchive(parsed.project, parsed.branch, token || undefined);
    res.status(upstream.statusCode);

    const contentType = upstream.headers["content-type"];
    const contentLength = upstream.headers["content-length"];
    const disposition = upstream.headers["content-disposition"];
    if (contentType) res.setHeader("Content-Type", contentType);
    if (contentLength) res.setHeader("Content-Length", contentLength);
    if (disposition) res.setHeader("Content-Disposition", disposition);
    res.setHeader("Cache-Control", "public, max-age=300");

    if (req.method === "HEAD") {
      return res.end();
    }

    return res.end(upstream.body);
  } catch (err: any) {
    console.error("[gitlab-zip] Proxy error:", err);
    return res.status(502).json({ error: "Failed to fetch GitLab archive", details: err.message });
  }
}