YTUI - Front end for youtube-dl

Bare minimum zero dependency¹² single binary web app to download youtube videos using youtube-dl. Allows multiple downloads in parallel. Shows title and live download progress. Pull requests welcome. For a more feature full nicer looking app, checkout YoutubeDL-Material

¹Uses golang.org/x/net for websockets. It is strictly not part of go standard library, but still from official go. ²Uses bootstrap for front-end. Files are embedded in the binary, does not make external requests both in front-end and back-end. See CSP header in templates/index.html

Install

❯ go install gitlab.com/balki/ytui@latest
go: downloading gitlab.com/balki/ytui v0.0.0-...

If you don't have and don't want to install go tool-chain, use docker to get the binary

❯ docker run --rm -v "${PWD}:/op" golang:latest sh -c "go install gitlab.com/balki/ytui@latest && cp -v /go/bin/ytui /op/"
go: downloading gitlab.com/balki/ytui v0.0.0-...
go: downloading golang.org/x/net v0.0.0-...
'/go/bin/ytui' -> '/op/ytui'

Usage

❯ ~/go/bin/ytui -h
2022/11/21 11:30:40 Youtube UI
Usage of ./ytui:
  -assetspath string
        Path where css files are saved and served (default "./assets")
  -cachepath string
        Path where temporary download files are saved (default "./cache")
  -dbpath string
        Path where downloaded info is saved (default "./db.json")
  -port int
        Port to listen on (default 8080)
  -saveassets
        Should the assets be saved in dir, so can be served by web server
  -title string
        Title of the page (default "Youtube Downloader")
  -videospath string
        Path where videos are saved (default "./vids")
  -videosurl string
        Prefix of the url, i.e. https://domain.com/<this var>/<video filename> (default "/vids")
  -ytdlcmd string
        youtube-dl command seperated by spaces (default "youtube-dl")

My Deployment setup

File: /usr/local/lib/systemd/system/ytui.service

[Unit]
Description=Youtube UI

[Service]
User=ytui
Type=simple
StateDirectory=ytui
WorkingDirectory=/var/lib/ytui
ExecStart=/path/to/ytui -ytdlcmd "youtube-dl --proxy socks5://x.x.x.x:1080"

[Install]
WantedBy=multi-user.target

File: /usr/local/lib/sysusers.d/ytui.conf

# See sysusers.d(5) for details.

u ytui - "Youtube UI"

File: /etc/caddy/conf.d/ytui.conf

Make sure your main caddy file includes this

ytui.mydomain.com {
    root * /var/lib/ytui

    handle /vids/* {
        file_server
    }

    handle {
        reverse_proxy 127.0.0.1:8080
    }
}

Setup Commands

sudo systemctl daemon-reload
sudo systemctl restart systemd-sysusers
sudo systemctl start ytui.service
sudo systemctl restart caddy

Progress Tracker

Wrote a small go helper ProgressTracker, to watch for progress and update subscribers. Hope it is useful elsewhere too. It has full unit test coverage

Tips

Quick view of the db in command line.

Needs yq and xsv installed

yq --from-file /dev/fd/7 db.json -o csv 7<<'EOM' | xsv table
.items
| del(.[] | .url)
| (
    [ .[0] | keys ] + 
    [ .[] 
      | .title |= sub("\n", "") 
      | [.*] 
    ]
  )
EOM

yq --from-file /dev/fd/7 db.json -o csv 7<<'EOM' | head | xsv table
.items
| with(.[]; 
    del(.url),
    .title |= sub("\n", ""),
    .status |= sub("Done", "✓"),
    .status |= sub("Error", "✗"),
    .file_name |= sub("^$", "MISSING")
  )
| (
    [ .[0] | keys ]
    + [ .[] | [.*] ]
  )
EOM