Computerization
diff --git a/‎netlify/edge-functions/handle-challenge.ts
Lines changed: 49 additions & 0 deletions b/‎netlify/edge-functions/handle-challenge.ts
Lines changed: 49 additions & 0 deletions
diff --git a/‎netlify/edge-functions/handle-null-ua.ts
Lines changed: 0 additions & 14 deletions b/‎netlify/edge-functions/handle-null-ua.ts
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+async function handleTurnstile(request: Request) {
+  const body = await request.formData()
+  // Turnstile injects a token in "cf-turnstile-response".
+  const token = body.get('cf-turnstile-response')
+  const ip = request.headers.get('CF-Connecting-IP')
+
+  // Validate the token by calling the
+  // "/siteverify" API endpoint.
+  const formData = new FormData()
+  formData.append('secret', Netlify.env.get('TURNSTILE_SECRET'))
+  if (token)
+    formData.append('response', token)
+  if (ip)
+    formData.append('remoteip', ip)
+
+  const url = 'https://challenges.cloudflare.com/turnstile/v0/siteverify'
+  const result = await fetch(url, {
+    body: formData,
+    method: 'POST',
+  })
+
+  const outcome = await result.json()
+  return !!outcome.success
+}
+
+export default async (request: Request) => {
+  const userAgent = request.headers.get('user-agent') || ''
+  const turnstileWidget = '<body><script src="https://challenges.cloudflare.com/turnstile/v0/api.js" async defer="defer"></script><div class="cf-turnstile" data-sitekey="0x4AAAAAAAxDMjtUWpd9d64q" data-callback="javascriptCallback"></div><script></script></body>'
+
+  if (!userAgent.length) {
+    return new Response('Access Denied: User-Agent is required', {
+      status: 403,
+      headers: {
+        'Content-Type': 'text/plain',
+      },
+    })
+  }
+
+  if (!(await handleTurnstile(request))) {
+    return new Response(turnstileWidget, {
+      status: 200,
+      headers: {
+        'Content-Type': 'text/html',
+      },
+    })
+  }
+}
+
+export const config = { path: '/*' }