mirror of
https://github.com/supabase/supabase.git
synced 2026-10-15 14:19:11 +03:00
Thor 雷神 SchaeffandCharis
1a571a2368
* docs: edgy bedrock. * fix: nav. * Apply suggestions from code review Co-authored-by: Charis <26616127+charislam@users.noreply.github.com> --------- Co-authored-by: Charis <26616127+charislam@users.noreply.github.com>
82 lines
2.4 KiB
Plaintext
82 lines
2.4 KiB
Plaintext
---
|
|
id: 'examples-cloudflare-turnstile'
|
|
title: 'CAPTCHA support with Cloudflare Turnstile'
|
|
description: 'Protecting Forms with Cloudflare Turnstile.'
|
|
tocVideo: 'OwW0znboh60'
|
|
---
|
|
|
|
[Cloudflare Turnstile](https://www.cloudflare.com/products/turnstile/) is a friendly, free CAPTCHA replacement, and it works seamlessly with Supabase Edge Functions to protect your forms. [View on GitHub](https://github.com/supabase/supabase/tree/master/examples/edge-functions/supabase/functions/cloudflare-turnstile).
|
|
|
|
## Setup
|
|
|
|
- Follow these steps to set up a new site: https://developers.cloudflare.com/turnstile/get-started/
|
|
- Add the Cloudflare Turnstile widget to your site: https://developers.cloudflare.com/turnstile/get-started/client-side-rendering/
|
|
|
|
## Code
|
|
|
|
Create a new function in your project:
|
|
|
|
```bash
|
|
supabase functions new cloudflare-turnstile
|
|
```
|
|
|
|
And add the code to the `index.ts` file:
|
|
|
|
```ts index.ts
|
|
import { corsHeaders } from '../_shared/cors.ts'
|
|
|
|
console.log('Hello from Cloudflare Trunstile!')
|
|
|
|
function ips(req: Request) {
|
|
return req.headers.get('x-forwarded-for')?.split(/\s*,\s*/)
|
|
}
|
|
|
|
Deno.serve(async (req) => {
|
|
// This is needed if you're planning to invoke your function from a browser.
|
|
if (req.method === 'OPTIONS') {
|
|
return new Response('ok', { headers: corsHeaders })
|
|
}
|
|
|
|
const { token } = await req.json()
|
|
const clientIps = ips(req) || ['']
|
|
const ip = clientIps[0]
|
|
|
|
// Validate the token by calling the
|
|
// "/siteverify" API endpoint.
|
|
let formData = new FormData()
|
|
formData.append('secret', Deno.env.get('CLOUDFLARE_SECRET_KEY') ?? '')
|
|
formData.append('response', token)
|
|
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()
|
|
console.log(outcome)
|
|
if (outcome.success) {
|
|
return new Response('success', { headers: corsHeaders })
|
|
}
|
|
return new Response('failure', { headers: corsHeaders })
|
|
})
|
|
```
|
|
|
|
## Deploy the server-side validation Edge Functions
|
|
|
|
- https://developers.cloudflare.com/turnstile/get-started/server-side-validation/
|
|
|
|
```bash
|
|
supabase functions deploy cloudflare-turnstile
|
|
supabase secrets set CLOUDFLARE_SECRET_KEY=your_secret_key
|
|
```
|
|
|
|
## Invoke the function from your site
|
|
|
|
```js
|
|
const { data, error } = await supabase.functions.invoke('cloudflare-turnstile', {
|
|
body: { token },
|
|
})
|
|
```
|