Feed Master

Feed-Master is a service that aggregates and publishes RSS feeds from multiple sources into a single feed. It normalizes the feeds to ensure that they are valid, compatible with podcast clients, and compliant with the RSS 2.0 specification. This allows users to access all of their desired content in a single, easy-to-use feed.

In addition to aggregating RSS feeds, Feed-Master can also publish updates to social media platforms such as Twitter and Telegram. For Telegram, the actual audio file is published, while for Twitter, a link to the original audio file is included in the tweet along with episode information like the title and description.

Feed-Master also supports extracting audio from YouTube channels and using it to create the final feed. The service uses tools like yt-dlp and ffmpeg to pull videos and extract the audio, respectively. In this mode, Feed-Master serves the audio files in addition to the generated RSS feed, providing users with even more options for accessing and consuming content.

Run in docker (short version)

• Copy docker-compose.yml and adjust exposed port if needed
• Create etc/fm.yml (samples provided in _example)
• Start container with docker-compose up -d feed-master

example of docker-compose.yml available in _example

Main application parameters

Command line	Environment	Default	Description
db	FM_DB	var/feed-master.bdb	bolt db file
conf	FM_CONF	feed-master.yml	config file (yml)
admin-passwd	ADMIN_PASSWD	none (disabled)	admin password for protected endpoint
dbg	DEBUG	false	debug mode

Configuration

Usually, feed-master configuration is stored in feed-master.yml file. It is a yaml file with the following structure:

feeds:
  yt-example: # feed name, can be repeated for multiple source feeds
    title: Some cool channels # feed title
    description: an example of youtube-based podcas # feed description
    link: http://localhost:8080/feed/yt-example # link to the source site
    language: "ru-ru" # feed language
    author: "Someone" # feed author, default "Feed Master"
    owner_email: "blah@example.com" # feed owner email, used in various services (i.e. spotify) to confirm RSS submission
    image: images/yt-example.png # feed image, used in generated RSS as podcast thumbnail
    filter: 
      - Title: "something" # filter from the feed, can be regexp or string
      - Invert: true # invert filter (acts as "only"), default false
    sources: # list of sources, each source is a name of and the source RSS feed
      - {name: "Точка", url: http://localhost:8080/yt/rss/PLZVQqcKxEn_6YaOniJmxATjODSVUbbMkd}
      - {name: "Живой Гвоздь", url: http://localhost:8080/yt/rss/UCWAIvx2yYLK_xTYD4F2mUNw}
      - {name: "Дилетант", url: http://localhost:8080/yt/rss/UCuIE7-5QzeAR6EdZXwDRwuQ}


youtube: # youtube configuration, optional
  base_url: http://localhost:8080/yt/media # base url for youtube media
  dl_template: yt-dlp --extract-audio --audio-format=mp3 --audio-quality=0 -f m4a/bestaudio "https://www.youtube.com/watch?v={{.ID}}" --no-progress -o {{.FileName}} # template for youtube-dl
  base_chan_url: "https://www.youtube.com/feeds/videos.xml?channel_id=" # base url for youtube channel
  base_playlist_url: "https://www.youtube.com/feeds/videos.xml?playlist_id=" # base url for youtube playlist
  update: 60s # update interval for youtube feeds
  skip_shorts: 120s # skip videos (and audios) shorter than this value, optional
  max_per_channel: 2 # max number of the latest videos per yt channel to download and process
  files_location: ./var/yt # location for downloaded youtube files
  rss_location: ./var/rss # location for generated youtube channel's RSS
  channels: # list of youtube channels to download and process
      # id: channel or playlist id, name: channel or playlist name, type: "channel" or "playlist", 
      # lang: language of the channel, keep: override default keep value
      # filter: criteria to include and exclude videos, can be regex
      - {id: UCWAIvx2yYLK_xTYD4F2mUNw, name: "Живой Гвоздь", lang: "ru-ru"}
      - {id: UCuIE7-5QzeAR6EdZXwDRwuQ, name: "Дилетант", type: "channel", lang: "ru-ru", "keep": 10}
      - {id: PLZVQqcKxEn_6YaOniJmxATjODSVUbbMkd, name: "Точка", type: "playlist", lang: "ru-ru", filter: {include: "ТОЧКА", exclude: "STAR'цы Live"}} 

system: # system configuration
  update: 1m # update interval for checking source feeds
  http_response_timeout: 30s # http response timeout
  max_per_feed: 10 # max items per feed to be processed and inclueded in the final RSS
  max_total: 50 # max total items to be included in the final RSS
  max_keep: 1000 # max items to be kept in the internal database 
  base_url: http://localhost:8080 # base url for the generated RSS and media files

see examples for more details.

Single-feed configuration

For a very simple configuration, command-line only configuration is available. In this case only a single source feed is allowed and yt processing is disabled. The command-line configuration is the following:

Command line	Environment	Default	Description
feed	FM_FEED		single feed, overrides config
update-interval	UPDATE_INTERVAL	1m	update interval, overrides config
telegram_chan	TELEGRAM_CHAN		single telegram channel, overrides config

Name of the channel or numeric ChatID could be used, here are the instructions on obtaining the ChatID. To be able to post messages to the channel, bot must be added as administrator with Post permission.

All this command-line mode is good for - process a single feed, send a telegram message and send a tweet on each new item.

Notifications

In both configuration modes, user can specify a list of telegram and twitter accounts to be notified.

Command line	Environment	Default	Description
telegram_server	TELEGRAM_SERVER	https://api.telegram.org	telegram bot api server
telegram_token	TELEGRAM_TOKEN		telegram token
telegram_timeout	TELEGRAM_TIMEOUT	1m	telegram timeout
consumer-key	TWI_CONSUMER_KEY		twitter consumer key
consumer-secret	TWI_CONSUMER_SECRET		twitter consumer secret
access-token	TWI_ACCESS_TOKEN		twitter access token
access-secret	TWI_ACCESS_SECRET		twitter access secret
template	TEMPLATE	{{.Title}} - {{.Link}}	twitter message template

API

See requests.http

public endpoints

• GET /rss/{name} - returns feed-set for given feed name
• GET /list - returns list of feed-sets (json)
• GET /image/{name} - returns image for given feed name
• GET /feed/{name}/sources - returns list of sources for given feed name
• GET /yt/rss/{channel} - return RSS feed for given youtube channel

admin endpoints

• POST /yt/rss/generate - regenerate RSS feed for all youtube channels
• DELETE /yt/entry/{channel}/{video} - delete youtube entry from internal database and remove it from RSS feed

Web UI

Web UI shows a list of items from generated RSS. It is available on /feeds or, for the particular output feed on /feed/{name}

Telegram notifications details

By default, (with only TELEGRAM_TOKEN provided) Telegram notifications will be sent using standard Bot API which has a limit of 50Mb for audio file upload.

You can provide TELEGRAM_API_ID and TELEGRAM_API_HASH (from here) to telegram-bot-api service in docker-compose.yml and uncomment TELEGRAM_SERVER for feed-master, then it would use the local bot api server to raise audio file upload limit from 50Mb to 2000Mb.

To use local telegram bot api server, use docker-compose up -d command instead of docker-compose up -d feed-master.