Websocket Chat Server using Tornado for backend RabbitMQ for message queue
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hipochat
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README.rst
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README.rst

HIPOCHAT: Websocket chat server

Supports notifications and keep the old messages

Hipochat is an open-source websocket chat server, using RabbitMQ as message queue, Tornado as Backend Server and Redis for persistent data.

Keeps the notifications count and also supports injections from external server directly to websocket Supports checking authentication with your own webserver.

How it works

First clone the project

git clone https://github.com/Hipo/hipochat.git

Then install the requirements

pip install -r requirements.txt

Make sure that you have redis-server and rabbitmq servers are running Set your variables in

vars.py:

PushNotificationURL = '<ENDPOINT RECEIVES YOUR PUSH NOTIFICATION SIGNAL AND SEND AN PN>'
ProfileURL = '<ENDPOINT YOU CAN ASK IF USER IS AUTHENTICATED>'
RABBIT_URL = '<RABBITMQ SERVER>'
RABBIT_USERNAME = '<RABBITMQ USERNAME>'
RABBIT_PASS = '<RABBITMQ PASSWORD>'
REDIS_URL = '<REDIS_URL>'

You can check the nginx reverse proxy details

Technical Detail

Chat Server Endpoint

Your backend server needs an EP that you should be able to create a chat room or receive the chat room tokens

Example request:

HEADER: Authentication: Token <Token>
URLs: **/api/chat**

Example response:

{
    "chat": {
        "token": "e598c2a9-317a-4577-8cbd-7fd5f0cddbdf"
    }
}

If room is created you should receive '201 CREATED' MESSAGE else if exists '200 OK' 200 OK means you already have this chat room and you should fetch the old messages

Receive the old messages

You visit the url with parameters below

Example Request:

HEADER -> Authorization: Token <token>
HTTP GET **/talk/old/<chat_room_token>/**

Response:

HTTP 200 OK

{
oldy: [
        {
            timestamp: 1414768486.196569,
            message: "asdasda",
            author: "asdasda"
        },
        {
            timestamp: 1414770934.580683,
            message: "adsadsdasads",
            author: "assaddsa"
        },
        {
            timestamp: 1414772188.836509,
            message: "dsadasads",
            author: "dssdaasd"
        },
        {
            timestamp: 1414773038.058612,
            token: "ac9e8485-8120-4cdc-a5c7-2687a04f01b5",
            injected: {
                   message: "hede",
                   hodo: "hede"
            }
        }
      ]
}

As an authenticated user you can post injections to CHAT server

You can inject external messages from a Backend Server directly into Websocket

Example Request:

HEADER -> Authorization: Token <token>
HTTP POST **/talk/item/<chat_room_token>/**

{   message: "foobar",
    user: "johndoe"
}

Start the Live Chat Server

Chat Server works with websocket technology Also you will see the injections in chat dialogue when an injection comes directly to Chat Server You should pass the user authentication token as query parameter

Example Request:

WEBSOCKET
ws://server.url/talk/chat/<chat_token>/?token=<auth_token>

NOTIFICATIONS COUNT

You can receive the notifications count of chat rooms for authenticated user by sending a request like below

HTTP GET /talk/notification/<chat_token>/?type=<type>

Got some of the code from https://github.com/haridas/RabbitChat