Function isRequestFromCloudflare

lib/parseRequest.js:30–37

(request)

const isServerlessRuntime = !!process.env.NEXT_PUBLIC_VERCEL_ENV;

export function isRequestFromCloudflare(request) {
  const proxyIp =
    request instanceof Request
      ? request.headers.get('x-vercel-proxied-for')?.split(', ').at(-1) // edge runtime
      : request.headers['x-vercel-proxied-for']?.split(', ').at(-1); // node runtime

  return !!isIP(proxyIp) && isInSubnet(proxyIp, cloudflareIPs);
}

// https://github.com/filipedeschamps/tabnews.com.br/blob/53482fa8d15c273e9dcda80242eaba4d9f37c9a9/models/ip.js#L4
export function extractIPFromRequest(request) {