Function firewallHandler

api/firewall.js:8–109

(url)

const hasWaf = (waf) => ({ hasWaf: true, waf });

const firewallHandler = async (url) => {
  const { href } = parseTarget(url);
  try {
    const response = await httpGet(href, {
      validateStatus: () => true,
    });
    const headers = response.headers;

    if (headers['server'] && headers['server'].includes('cloudflare')) {
      return hasWaf('Cloudflare');
    }

    if (headers['x-powered-by'] && headers['x-powered-by'].includes('AWS Lambda')) {
      return hasWaf('AWS WAF');
    }

    if (headers['server'] && headers['server'].includes('AkamaiGHost')) {
      return hasWaf('Akamai');
    }

    if (headers['server'] && headers['server'].includes('Sucuri')) {
      return hasWaf('Sucuri');
    }

    if (headers['server'] && headers['server'].includes('BarracudaWAF')) {
      return hasWaf('Barracuda WAF');
    }

    if (
      headers['server'] &&
      (headers['server'].includes('F5 BIG-IP') || headers['server'].includes('BIG-IP'))
    ) {
      return hasWaf('F5 BIG-IP');
    }

    if (headers['x-sucuri-id'] || headers['x-sucuri-cache']) {
      return hasWaf('Sucuri CloudProxy WAF');
    }

    if (headers['server'] && headers['server'].includes('FortiWeb')) {
      return hasWaf('Fortinet FortiWeb WAF');
    }

    if (headers['server'] && headers['server'].includes('Imperva')) {
      return hasWaf('Imperva SecureSphere WAF');
    }

    if (headers['x-protected-by'] && headers['x-protected-by'].includes('Sqreen')) {
      return hasWaf('Sqreen');
    }

    if (headers['x-waf-event-info']) {
      return hasWaf('Reblaze WAF');
    }

    if (headers['set-cookie'] && headers['set-cookie'].includes('_citrix_ns_id')) {
      return hasWaf('Citrix NetScaler');
    }