matrix-docker-ansible-deploy/docs/configuring-captcha.md
Suguru Hirahara bf5373479b
Use common expression on documentation regarding playbook configuration
Overall the playbook uses the expression "Add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:" with the heading "Adjusting the playbook configuration" for sections to explain what to be added as variables

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
2024-10-12 20:59:15 +09:00

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(Adapted from the [upstream project](https://github.com/element-hq/synapse/blob/develop/docs/CAPTCHA_SETUP.md))
# Overview
Captcha can be enabled for this home server. This file explains how to do that.
The captcha mechanism used is Google's [ReCaptcha](https://www.google.com/recaptcha/). This requires API keys from Google. If your homeserver is Dendrite then [hCapcha](https://www.hcaptcha.com) can be used instead.
## ReCaptcha
### Getting keys
Requires a site/secret key pair from:
<http://www.google.com/recaptcha/admin>
Must be a reCAPTCHA **v2** key using the "I'm not a robot" Checkbox option
### Setting ReCaptcha keys
Once registered as above, add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
```yaml
# for Synapse
matrix_synapse_enable_registration_captcha: true
matrix_synapse_recaptcha_public_key: 'YOUR_SITE_KEY'
matrix_synapse_recaptcha_private_key: 'YOUR_SECRET_KEY'
# for Dendrite
matrix_dendrite_client_api_enable_registration_captcha: true
matrix_dendrite_client_api_recaptcha_public_key: 'YOUR_SITE_KEY'
matrix_dendrite_client_api_recaptcha_private_key: 'YOUR_SECRET_KEY'
```
## hCaptcha
### Getting keys
Requires a site/secret key pair from:
<https://dashboard.hcaptcha.com/sites/new>
### Setting hCaptcha keys
```yaml
matrix_dendrite_client_api_enable_registration_captcha: true
matrix_dendrite_client_api_recaptcha_public_key: 'YOUR_SITE_KEY'
matrix_dendrite_client_api_recaptcha_private_key: 'YOUR_SECRET_KEY'
matrix_dendrite_client_api_recaptcha_siteverify_api: 'https://hcaptcha.com/siteverify'
matrix_dendrite_client_api_recaptcha_api_js_url: 'https://js.hcaptcha.com/1/api.js'
matrix_dendrite_client_api_recaptcha_form_field: 'h-captcha-response'
matrix_dendrite_client_api_recaptcha_sitekey_class: 'h-captcha'
```