madawei2699/free4chat

free4.chat is a real-time audio chat service. It is designed by the local first and privacy first principle, and is very easy to use.

free4chat

free4.chat is a real-time audio chat service. It is designed by the local first and privacy first principle, and is very easy to use.

⚠️ This project is just using for technical test purpose, use at all your risk!

⚠️ There is freedom of speech, but I cannot guarantee freedom after speech. (- Idi Amin)

Features

• Real-time Communicating
  • Voice chat in room
  • Text chat in room, can sent text or emoji
    • Persist text messages to browser localStorage
  • Can send arbitrary data by WebRTC datachannel 🚩
  • Room permission setting, like public/private type setting
    • private room can't been seen on room discovery, and it needs password to enter. The password is End-to-End Encryption, server only need check the answer which given by the client like the PoW in blockchain.
    • Public rooms discovery, like hot room list or filter rooms by type/tag
• Real-time Collaborating
  • User real-time collaboration, like whiteboard, you draw I guess, etc.
    • Use CRDT to impelement real-time collaboration
      • https://github.com/derekkraan/delta_crdt_ex
      • https://github.com/electric-sql/vaxine
      • https://github.com/liveblocks/liveblocks
      • https://github.com/yjs/yjs
    • Whiteboard
      • https://github.com/tldraw/tldraw
• Real-time Contesting
  • AI Robot user, like game robot who can play or facilitate game
    • robot use Web Speech API to play with user in room
      • Azure Text to speech service.
    • robot can play some voice games like language learning, technical interview, etc.
      • Gartic Phone - The Telephone Game
      • ESL Game - Not only practicing English speaking
      • Gartic.io - Draw, Guess, WIN
      • Get to know someone in 17 seconds
    • AI + Voice
      • Deep learning models are changing the world
        • @midjourney can generate fatastic image from text
        • @GitHubCopilot can generate context-awared code from short code segment
        • @OpenAI GPT-3 model can generate text paragraph from short sentence segment
      • Voice conversation from text?

Architecture

• Common

  • Use WebSocket to replace http protocol of JSON-RPC
  • Compatibility
    • Make Safari(WebKit) compatibility better

• Tech Stack

  • Use Elixir/Phoenix to rewrite the backend code
  • Use Recat/Next.js to rewrite the frontend code

• Infra

  • Use docker to deploy to PaaS platform like Railway or Fly
  • Use GitHub Actions + AWS Lightsail to deploy backend server
  • Backend service cluster, auto scaling, load balancing, etc.
    • Backend service use Elixir libcluster to build cluster
    • Frontend app use the client load balance strategy
    • TURN cluster scale
      • Fix by start turn before the libcluster, still wait the upstream library to fix it normally
    • Room process rebalance, that means if the node where room in is offline, then the room process can rebalance to another node, the rebalance can use Consistent hashing to implement

      • For now, we just ignore this issue, because it can be resolved by reconnect another node and create the room again

      • Some Elixir simple approaches

        • Swarm
        • Horde

      • A complex approach is use Riak Core which implement the Consistent hashing and can rebalance the process by VNode

        • NkDIST, a Erlang distributed registration and load balancing lib which is base on Riak Core

      • Tinode chat solve this issue by implementing the Raft Consensus Algorithm

        More

        • tinode/chat#28
        • tinode/chat#279
        • https://github.com/tinode/chat/blob/master/server/topic_proxy.go
        • https://github.com/tinode/chat/blob/master/server/cluster.go
        • https://github.com/tinode/chat/blob/master/server/cluster_leader.go
        • https://github.com/tinode/chat/blob/master/server/ringhash/ringhash.go
  • Security enhancement, like coturn TLS setup, end-to-end encryption, etc.
    • TURN enable TLS
  • Privacy enhancement.
  • IPV6 support.

Documentation

https://dev-notes.free4.chat/

Contribution

If you are interested in webRTC, peer-to-peer(P2P), real-time collaboration(CRDT), distributed system or robot design, you can join this project and contact with me by twitter.

Thanks

• free4.chat Elixir version is build on the top of Membrane Framework, thanks for their heart of open source.
• free4.chat Golang version is build on the top of Kraken, Mornin, coturn and Pion, thanks for their heart of open source.
• These websites also inspired me:
  • Random voice and text chat rooms that you’ll love. | Speakrandom
  • Practice Speaking English Online Free - Language Practice Community
  • Agora Real-Time Voice and Video Engagement
  • An open network for secure, decentralized communication - Matrix
  • Introduction to Realtime Web Applications
  • Gather | Building better teams, bit by bit

free4chat's Issues

docker cannot be pulled.

Error response from daemon: pull access denied for free4chat, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.

QUIC

https://bloggeek.me/who-needs-quic-in-webrtc/

Docker

...would be great.

Thanks. Cool project!

OBS integrate

https://github.com/steveseguin/vdo.ninja

Dockerfile编译报错

Dockerfile编译报错。希望大佬整个仓库镜像

Add video chat room

Add video chat room

Learning resource

Some learning resource docs

Project no longer compiles

The project is locked onto membrane master branch but unfortunately membrane has undergone a major overhaul to their repository structure. This means that simply doing

mix deps.get
mix ecto.reset

will result in many misssing dependencies and compile-time errors.

will you consider refactoring the project for the new membrane repo?

Change Voice

Change voice can help to improve user privacy which make it hard to track user voiceprint.

文档能详细点就好了，不知道怎么去操作

啥时候release更新哩

SFU Fullmesh

all-in-one docker image

请教一下：就是ICETest那段Python代码报错

docker can't open 4000