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Bot with utilities for the Telegram Group Programando na Gringa (https://go.d1m.dev/png)

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gringobot

Bot with utilities for the Telegram Group Programando na Gringa

This bot offer features that make the management of a large international group easier. We use it to add common questions and features that make the experience of our members more delightful.

All content is managed in markdown and is requested over the network through Github API's, so we don't have to redeploy the bot to have updated content.

The bot allows members to register the country they're located, so when questions about specific places come up, they can just use the bot to find those folks through a simple command like /whoat NL and ping them if needed with /ping NL

This bot is available in Telegram as @PNGGringoBot and it works in multiple groups. Keep in mind that the admins of Programando na Gringa own this instance as a community effort and manage the data accordingly. Feel free to reach out if you have any questions.

Features

The bot replies in English by default. You can change the language using the /set_language <locale>. Currently, only en and ptbr are available locales. Please feel free to open a PR adding more locales.

  • Register member location:
    • English: /register_member_at NL, /imat NL
    • Portuguese: /estou NL, /estou Holanda
  • Find folks from a location:
    • English: /find_members_at NL, /whoat NL
    • Portuguese: /quem NL, /quem Holanda
  • Ping folks from a location:
    • English: /ping_members_at NL, /ping NL, /ping remote
    • Portuguese: /alo NL, /alo Holanda
    • Note on this feature:
      • Telegram imposes limits on actually pinging more than 5 mentions in the same message. When trying to ping people registered in a location, this bot will randomly select 5 of those folks and mention them. The rest will still be mentioned, but with silent mentions.
  • Deregister member location:
    • English: /leave NL
    • Portuguese: /sair NL, /sair Holanda
  • Find member registered locations:
    • English: /find_member, /whereami
    • Portuguese: /ondeestou
  • List Member count per Country:
    • English: /list_country_member_count, /list
    • Portuguese: /quantos
    • Include remote members when listing
  • Rank countries by number of members
    • English: /rank_country_member_count, /rank
    • Portuguese: /classificacao
    • Include remote members when ranking
  • Register as Remote Member:
    • English: /register_remote_member <from> <to>
    • Portuguese: /estou_remoto <from> <to>
  • Deregister as Remote Member:
    • English: /deregister_remote_member
    • Portuguese: /sair_remoto
  • Find remote member working from a location:
    • English: /find_remote_member_from BR
    • Portuguese: /quem_remoto_do BR
  • Find remote member working for a location:
    • English: /find_remote_member_to CA
    • Portuguese: /quem_remoto_para CA
  • Ping all remote members:
    • /ping_remote, /ping remote (case insensitive)
  • Help Sections:
    • English: /help <subject> <topic>
    • Portuguese: /ajuda <assunto> <topico>
  • Ping all admins:
    • /ping_admins, /admins, /eita
  • Kick user:
    • /kick
      • Only works by replying a message from the user to be kicked.
  • Set Group Language:
    • /set_language en
    • /set_language ptbr
  • Captcha:
    • New members will face a simple captcha on groups with this enabled.
    • All CAPTCHA messages are self-destructable, except the rejection ones.
    • /enable_captcha: Will enable the captcha in the group. Can only be executed by admins.
    • /disable_captcha: Will disable the captcha in the group. Can only be executed by admins.
  • Self preservation habilities
    • Handle deleted registered users and deregister those when identified
    • Auto bans accounts with Cyrillic Characters (huge sorry to all the eastern europeans for this, russians made me do it)
  • Message Auto Deletion:
    • Configurable through the MESSAGE_TIMEOUT_IN_MINUTES environment variable. Default is 2.
    • Feature can be toggled through the MESSAGE_TIMEOUT_ENABLED environment variable. Default is true.
    • Deletes both command and reply messages after timeout is reached.
    • Deletes all interactions that were replied with error messages.
    • Deletes messages from the following commands:
      • /leave
      • /find_member
      • /register_member_at
      • /register_remote_member
      • /deregister_remote_member
      • /find_members_at (only if no members are found)
      • /ping_members_at (only if no members are found)
      • /list_country_member_count (only if no members are registered)
      • /rank_country_member_count (only if no members are registered)

Developing

Make sure you have Git and Node 19+ (installed through nvm is recommended) available in your local environment.

# clone repository
git clone https://github.com/armand1m/gringobot.git

# cd into it
cd ./gringobot

# (optional) in case you have nvm instead of node19 directly installed
nvm install 19
nvm use 19

# install yarn package manager
npm install -g yarn

# download project dependencies
yarn

You must have a Telegram Bot Token created by the Bot Father. Once you have that, run the following command with your bot token:

cat > ./.env <<EOL
NODE_ENV=development
BOT_TOKEN=your-bot-token-here
DATA_PATH=./data
MESSAGE_TIMEOUT_ENABLED=true
MESSAGE_TIMEOUT_IN_MINUTES=2
HELP_COMMAND_ENABLED=true
EOL

Now run yarn dev and your bot should be up with live reloading.

Deploying

Host

Follow the same configuration step for development, but first override your .env with this:

cat > ./.env <<EOL
NODE_ENV=production
BOT_TOKEN=your-bot-token-here
DATA_PATH=./data
MESSAGE_TIMEOUT_ENABLED=true
MESSAGE_TIMEOUT_IN_MINUTES=2
HELP_COMMAND_ENABLED=true
EOL

then build the application and start the process:

yarn build
node ./build/index.js

You probably want to use a process manager like systemd or PM2.

Docker

This bot is published publicly as a Docker Image, so you should be able to run it anywhere you can run a Docker Container.

To run it locally, just run the following:

# create a volume to persist data
docker volume create gringobot_data

# (optional) build image from source
docker build . -t armand1m/gringobot

# run the container
docker run \
  -e BOT_TOKEN="your-bot-token-here" \
  --mount source=gringobot_data,target=/app/data \
  armand1m/gringobot

Kubernetes

Kubernetes manifests were available at the ./kubernetes folder.

As of 2023, this application is now deployed on https://fly.io. I've kept this note for historical reasons.

Docs are here

Fly

This bot is published in https://fly.io

The CI will take care of publishing the last main branch state into the official bot release.

Publishing it in your instance should be easy:

# get credentials
fly auth login

# set bot token from @BotFather as a secret
#
# secrets in fly are automatically added to
# the instance as env vars with the same name
fly secrets set BOT_TOKEN=123123123:32132132131312

# create a volume to hold persistent group data
# 1gb is more than enough.
fly vol create gringobot_data -s 1

# ship it
fly deploy

Refer to https://fly.io docs for more details on other commons operations.

Credits

Credits goes to all the maintainers and participants of the Programando na Gringa group.

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Bot with utilities for the Telegram Group Programando na Gringa (https://go.d1m.dev/png)

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