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This way, the "installing" sections would cover from beginners to advanced (professional) readers. Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
95 lines
4.9 KiB
Markdown
95 lines
4.9 KiB
Markdown
# Setting up Buscarron (optional)
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The playbook can install and configure [Buscarron](https://github.com/etkecc/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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## Adjusting the playbook configuration
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To enable Buscarron, add the following configuration to your `inventory/host_vars/matrix.example.com/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.example.com/contact
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room: "!qporfwt:{{ matrix_domain }}" # (mandatory) Room ID where form submission will be posted
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redirect: https://example.com # (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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### Adjusting the Buscarron URL
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By default, this playbook installs Buscarron on the `buscarron.` subdomain (`buscarron.example.com`) and requires you to [adjust your DNS records](#adjusting-dns-records).
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By tweaking the `matrix_bot_buscarron_hostname` and `matrix_bot_buscarron_path_prefix` variables, you can easily make the service available at a **different hostname and/or path** than the default one.
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Example additional configuration for your `inventory/host_vars/matrix.example.com/vars.yml` file:
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```yaml
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# Switch to the domain used for Matrix services (`matrix.example.com`),
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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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## 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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By default, you will need to create a CNAME record for `buscarron`. See [Configuring DNS](configuring-dns.md) for details about DNS changes.
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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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## Installing
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After configuring the playbook and potentially [adjusting your DNS records](#adjusting-dns-records), run the playbook with [playbook tags](playbook-tags.md) as below:
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<!-- NOTE: let this conservative command run (instead of install-all) to make it clear that failure of the command means something is clearly broken. -->
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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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- The shortcut commands with the [`just` program](just.md) are also available: `just install-all` or `just setup-all`
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`just install-all` is useful for maintaining your setup quickly ([2x-5x faster](../CHANGELOG.md#2x-5x-performance-improvements-in-playbook-runtime) than `just setup-all`) when its components remain unchanged. If you adjust your `vars.yml` to remove other components, you'd need to run `just setup-all`, or these components will still remain installed.
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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:example.com` 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.example.com/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://github.com/etkecc/buscarron).
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