# Introduction
closes https://github.com/twentyhq/core-team-issues/issues/591
Same than for `twenty-shared` made in
https://github.com/twentyhq/twenty/pull/11083.
## TODO
- [x] Manual migrate twenty-website twenty-ui imports
## What's next:
- Generate barrel and migration script factorization within own package
+ tests
- Refactoring using preconstruct ? TimeBox
- Lint circular dependencies
- Lint import from barrel and forbid them
### Preconstruct
We need custom rollup plugins addition, but preconstruct does not expose
its rollup configuration. It might be possible to handle this using the
babel overrides. But was a big tunnel.
We could give it a try afterwards ! ( allowing cjs interop and stuff
like that )
Stuck to vite lib app
Closed related PRs:
- https://github.com/twentyhq/twenty/pull/11294
- https://github.com/twentyhq/twenty/pull/11203
## Description
This PR adds recaptcha on login form. One can add any one of three
recaptcha vendor -
1. Google Recaptcha -
https://developers.google.com/recaptcha/docs/v3#programmatically_invoke_the_challenge
2. HCaptcha -
https://docs.hcaptcha.com/invisible#programmatically-invoke-the-challenge
3. Turnstile -
https://developers.cloudflare.com/turnstile/get-started/client-side-rendering/#execution-modes
### Issue
- #3546
### Environment variables -
1. `CAPTCHA_DRIVER` - `google-recaptcha` | `hcaptcha` | `turnstile`
2. `CAPTCHA_SITE_KEY` - site key
3. `CAPTCHA_SECRET_KEY` - secret key
### Engineering choices
1. If some of the above env variable provided, then, backend generates
an error -
<img width="990" alt="image"
src="https://github.com/twentyhq/twenty/assets/60139930/9fb00fab-9261-4ff3-b23e-2c2e06f1bf89">
Please note that login/signup form will keep working as expected.
2. I'm using a Captcha guard that intercepts the request. If
"captchaToken" is present in the body and all env is set, then, the
captcha token is verified by backend through the service.
3. One can use this guard on any resolver to protect it by the captcha.
4. On frontend, two hooks `useGenerateCaptchaToken` and
`useInsertCaptchaScript` is created. `useInsertCaptchaScript` adds the
respective captcha JS script on frontend. `useGenerateCaptchaToken`
returns a function that one can use to trigger captcha token generation
programatically. This allows one to generate token keeping recaptcha
invisible.
### Note
This PR contains some changes in unrelated files like indentation,
spacing, inverted comma etc. I ran "yarn nx fmt:fix twenty-front" and
"yarn nx lint twenty-front -- --fix".
### Screenshots
<img width="869" alt="image"
src="https://github.com/twentyhq/twenty/assets/60139930/a75f5677-9b66-47f7-9730-4ec916073f8c">
---------
Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
Co-authored-by: Charles Bochet <charles@twenty.com>
