93 lines
4.1 KiB
Markdown
93 lines
4.1 KiB
Markdown
# Setting up Buscarron (optional)
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The playbook can install and configure [buscarron](https://gitlab.com/etke.cc/buscarron) for you.
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Buscarron is bot that receives HTTP POST submissions of web forms and forwards them to a Matrix room.
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## Decide on a domain and path
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By default, Buscarron is configured to use its own dedicated domain (`buscarron.DOMAIN`) and requires you to [adjust your DNS records](#adjusting-dns-records).
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You can override the domain and path like this:
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```yaml
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# Switch to the domain used for Matrix services (`matrix.DOMAIN`),
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# so we won't need to add additional DNS records for Buscarron.
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matrix_bot_buscarron_hostname: "{{ matrix_server_fqn_matrix }}"
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# Expose under the /buscarron subpath
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matrix_bot_buscarron_path_prefix: /buscarron
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```
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**NOTE**: When using `matrix-nginx-proxy` instead of Traefik, you won't be able to override the path prefix. You can only override the domain, but that needs to happen using another variable: `matrix_server_fqn_buscarron` (e.g. `matrix_server_fqn_buscarron: "form.{{ matrix_domain }}"`).
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## Adjusting DNS records
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Once you've decided on the domain and path, **you may need to adjust your DNS** records to point the Buscarron domain to the Matrix server.
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If you've decided to reuse the `matrix.` domain, you won't need to do any extra DNS configuration.
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## Adjusting the playbook configuration
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Add the following configuration to your `inventory/host_vars/matrix.DOMAIN/vars.yml` file:
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```yaml
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matrix_bot_buscarron_enabled: true
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# Uncomment and adjust this part if you'd like to use a username different than the default
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# matrix_bot_buscarron_login: bot.buscarron
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# Generate a strong password here. Consider generating it with `pwgen -s 64 1`
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matrix_bot_buscarron_password: PASSWORD_FOR_THE_BOT
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# Adjust accepted forms
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matrix_bot_buscarron_forms:
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- name: contact # (mandatory) Your form name, will be used as endpoint, eg: buscarron.DOMAIN/contact
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room: "!yourRoomID:DOMAIN" # (mandatory) Room ID where form submission will be posted
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redirect: https://DOMAIN # (mandatory) To what page user will be redirected after the form submission
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ratelimit: 1r/m # (optional) rate limit of the form, format: <max requests>r/<interval:s,m>, eg: 1r/s or 54r/m
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hasemail: 1 # (optional) form has "email" field that should be validated
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extensions: [] # (optional) list of form extensions (not used yet)
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matrix_bot_buscarron_spamlist: [] # (optional) list of emails/domains/hosts (with wildcards support) that should be rejected automatically
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```
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## Installing
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After configuring the playbook, run the [installation](installing.md) command again:
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```sh
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ansible-playbook -i inventory/hosts setup.yml --tags=setup-all,ensure-matrix-users-created,start
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```
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**Notes**:
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- the `ensure-matrix-users-created` playbook tag makes the playbook automatically create the bot's user account
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- if you change the bot password (`matrix_bot_buscarron_password` in your `vars.yml` file) subsequently, the bot user's credentials on the homeserver won't be updated automatically. If you'd like to change the bot user's password, use a tool like [synapse-admin](configuring-playbook-synapse-admin.md) to change it, and then update `matrix_bot_buscarron_password` to let the bot know its new password
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## Usage
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To use the bot, invite the `@bot.buscarron:DOMAIN` to the room you specified in a config, after that any point your form to the form url, example for the `contact` form:
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```html
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<form method="POST" action="https://buscarron.DOMAIN/contact">
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<!--your fields-->
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</form>
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```
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**NOTE**: to fight against spam, Buscarron is **very aggressive when it comes to banning** and will ban you if:
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- if you hit the homepage (HTTP `GET` request to `/`)
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- if you submit a form to the wrong URL (`POST` request to `/non-existing-form`)
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- if `hasemail` is enabled for the form (like in the example above) and you don't submit an `email` field
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If you get banned, you'd need to restart the process by running the playbook with `--tags=start` or running `systemctl restart matrix-bot-buscarron` on the server.
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You can also refer to the upstream [documentation](https://gitlab.com/etke.cc/buscarron).
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