Music Downloader Telegram Bot aka scdlbot

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Telegram Bot for downloading MP3 rips of tracks/sets from SoundCloud, Bandcamp, YouTube with tags and artwork.

Bot Usage

Send /start or /help command to bot or refer directly to the help message.

Please report all bugs and issues and suggest your improvements to issues.

Supported sites and mainly used packages

Development

Installation

Requirements

Those should be available in your PATH:

Install / Update unstable from Git source

git clone https://github.com/gpchelkin/scdlbot.git
cd scdlbot
pip3 install --requirement requirements.txt

# Update:
git pull
pip3 install --requirement requirements.txt

# System-wide install link to current sources, recommended:
python3 setup.py develop

# System-wide install copy of current sources, not recommended:
python3 setup.py install

Configuration

Download or copy config file sample and set up config environment variables in it:

# PyPI-installed: download sample config:
curl -o .env https://raw.githubusercontent.com/gpchelkin/scdlbot/master/.env.sample

# Git source-installed: copy sample config:
cp .env.sample .env

# Use your favourite editor:
nano .env

Required

Optional

  • SC_AUTH_TOKEN: SoundCloud Auth Token, obtain here

  • STORE_CHAT_ID: Chat ID for storing audios of inline mode

  • USE_WEBHOOK: use webhook for bot updates: 1, use polling (default): 0, more info

  • APP_URL: app URL like https://<appname>.herokuapp.com/, required for webhook

  • PORT: port for webhook to listen to; Heroku sets this automatically for web dynos

  • BOTAN_TOKEN: Botan.io token

  • NO_FLOOD_CHAT_IDS: Comma-separated chat IDs with no replying and caption spam

  • BIN_PATH: Custom directory where scdl and bandcamp-dl binaries are available, e.g. ~/.pyenv/shims/ if you use pyenv, default: empty (binaries are availaible in PATH)

  • DL_DIR: Parent directory for downloads directories, default: /tmp/scdlbot

  • DL_TIMEOUT: Download timeout in seconds, stop downloading if it takes longer than allowed, default: 300

  • MAX_CONVERT_FILE_SIZE: Don’t try to split and send files over this number of bytes, default: 80000000

  • SYSLOG_ADDRESS: Syslog server, for example logsX.papertrailapp.com:ABCDE

  • SYSLOG_DEBUG: Enable verbose debug logging: 1

  • HOSTNAME: Hostname to show up in Syslog messages

  • GOOGL_API_KEY: Goo.gl URL shortener API key

Webhooks: These three links should help. In NGINX use TOKEN1 as TG_BOT_TOKEN without “:” symbol, and port in proxy_pass according to PORT environment variable.

Telegram Bot Settings

Send the commands from respective filenames in telegram_settings dir to @BotFather, choose your bot and copy corresponding values in order to use the bot conveniently. Also disable privacy mode if you want to.

Running Locally or at Dedicated Server

Using Heroku Local (preferred)

You will need Heroku CLI installed.

# PyPI-installed: download Procfile:
curl -O https://raw.githubusercontent.com/gpchelkin/scdlbot/master/Procfile

# For long polling:
heroku local worker
# For webhook:
heroku local web

Using Python only

# For PyPI or Git source system-wide installs:
export $(cat .env | xargs)
scdlbot

# or in one line:
env $(cat .env | xargs) scdlbot

# For non-installed Git source repository directory:
export $(cat .env | xargs)
python -m scdlbot
# or in one line:
env $(cat .env | xargs) python -m scdlbot

Deploying to Heroku

Deploy

Register on Heroku, press the button above and configure variables for deploying. When app is deployed you must set only one dyno working on “Resources” tab in your app settings depending on which way of getting updates you have chosen and set in config variables: worker for polling or web for webhook.

Manually

You can do the same as the button above but using Heroku CLI, not much of a fun. Assuming you are in scdlbot repository directory:

heroku login
# Create app with Python3 buildpack and set it for upcoming builds:
heroku create --buildpack heroku/python
heroku buildpacks:set heroku/python
# Add FFmpeg buildpack needed for youtube-dl:
heroku buildpacks:add --index 1 https://github.com/laddhadhiraj/heroku-buildpack-ffmpeg.git --app scdlbot
# Deploy app to Heroku:
git push heroku master
# Set config vars automatically from your .env file
heroku plugins:install heroku-config
heroku config:push
# Or set them one by one:
heroku config:set TG_BOT_TOKEN="<TG_BOT_TOKEN>" STORE_CHAT_ID="<STORE_CHAT_ID>" ...

If you use webhook, start web dyno and stop worker dyno:

heroku ps:scale web=1 worker=0
heroku ps:stop worker

If you use polling, start worker dyno and stop web dyno:

heroku ps:scale worker=1 web=0
heroku ps:stop web

Some useful commands:

# Attach to logs:
heroku logs -t
# Test run ffprobe
heroku run "ffprobe -version"

Deploying to Dokku

Use Dokku (your own Heroku) installed on your own server. App is tested and fully ready for deployment with polling (no webhook yet). https://github.com/dokku/dokku-letsencrypt

export DOKKU=<your_dokku_server>
scp .env $DOKKU:~
ssh $DOKKU
    export DOKKU=<your_dokku_server>
    dokku apps:create scdlbot
    dokku certs:generate scdlbot scdlbot.$DOKKU
    dokku config:set scdlbot $(cat .env | xargs)
    logout
git remote add dokku dokku@$DOKKU:scdlbot
git push dokku master
ssh $DOKKU
    dokku ps:scale scdlbot worker=1 web=0
    dokku ps:restart scdlbot