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https://github.com/j3k0/ganomede-chat

Ganomede multi-rooms chat service
https://github.com/j3k0/ganomede-chat

Last synced: 22 days ago
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Ganomede multi-rooms chat service

Host: GitHub
URL: https://github.com/j3k0/ganomede-chat
Owner: j3k0
Created: 2015-09-03T20:59:52.000Z (about 9 years ago)
Default Branch: master
Last Pushed: 2023-07-19T00:03:12.000Z (over 1 year ago)
Last Synced: 2024-04-14T16:10:56.040Z (7 months ago)
Language: TypeScript
Size: 1.29 MB
Stars: 0
Watchers: 5
Forks: 0
Open Issues: 7
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

Chat
----

Multi-rooms chat service.

Chat is organized into "rooms". Each room has a type and a list of players allowed to participate.

Relations
---------

* "AuthDB" (Redis) -> to check authentication status of user making requests
* see https://github.com/j3k0/node-authdb
* "ChatDB" (Redis) -> store rooms messages
* Notification service -> notify users when a chat message was added to a room
* see https://github.com/j3k0/ganomede-notifications

Configuration
-------------

Variables available for service configuration (see [config.js](/config.js)):

* `PORT`
* `ROUTE_PREFIX`
* `API_SECRET` - Give access to private APIs
* `NODE_ENV` — Antything except `production` means that app is running in development (debug) mode
* `MAX_MESSAGES` - Max number of messages stored in a room (default 100)

Links with DBs and other services:

* `REDIS_AUTH_PORT_6379_TCP_ADDR` - IP of the AuthDB redis
* `REDIS_AUTH_PORT_6379_TCP_PORT` - Port of the AuthDB redis
* `REDIS_CHAT_PORT_6379_TCP_ADDR` - IP of the ChatDB redis
* `REDIS_CHAT_PORT_6379_TCP_PORT` - Port of the ChatDB redis
* `NOTIFICATIONS_PORT_8080_TCP_ADDR` - IP of the notifications service
* `NOTIFICATIONS_PORT_8080_TCP_PORT` - Port of the notifications service

Optional link to the usermeta database containing user policies (see policies.md)

* `REDIS_USERMETA_PORT_6379_TCP_ADDR` - IP of the UsermetaDB redis
* `REDIS_USERMETA_PORT_6379_TCP_PORT` - Port of the UsermetaDB redis
* If any of these options are missing, no ban or block check will be performed — every user account will be considered to be in good standing (no bans)

Statsd options (used for monitoring).

* `STATSD_HOST` - host that runs the statsd server
* `STATSD_PORT` - port to connect to statsd server
* `STATSD_PREFIX` - prefix for data stored in stats (default to `ganomede.chat.`)

AuthDB
------

* Contains a store "authToken" -> { "username": "someusername", ... }
* Access it using node-authdb (https://github.com/j3k0/node-authdb)

UsermetaDB
----------

Contains the policies (banned, blocked users, chat disabled, etc)

* `userA:$blocked` -> `user1,user2,user3`
* List of users that "userA" has blocked. Messages from users in this list won't be sent to "userA".
* `userA:$banned` -> timestamp
* A timestamp indicated the user is banned.
* `userA:$chatdisabled`-> `"true"`
* the string `"true"` indicates that the chat is disabled for this user (disabled by the user).
* `userA:$muted`-> `"true"`
* the string `"true"` indicates that this user cannot chat (disabled by admin).

API
---

All "room" related calls require a valid authToken, either:

* the token for one of the room participants.
* `API_SECRET`, in which case messages are posted as pseudo-user "$$"

# Rooms [/chat/v1/auth/:authToken/rooms]

## Create a room [POST]

Create a room with a given configuration (or return the one that already exists and update its ttl).

### body (application/json)

{
"type": "triominos/v1",
"users": [ "alice", "bob" ]
}

### response [200] OK

{
"id": "triominos/v1/alice/bob",
"type": "triominos/v1",
"users": [ "alice", "bob" ],
"messages": []
}

### response [403] Forbidden

When linked to users service, will perform ban check. Banned `:username`s will receive 403 error no matter validity of a token.

### design note

Room is gonna expire 60 days after last POST.

Room's id is formed using following code:

``` coffee
"#{body.type}/#{body.users.sort().join('/')}"
```

# Room [/chat/v1/auth/:authToken/rooms/:roomId]

+ Parameters
+ authToken (string, required) ... Authentication token
+ roomId (string, required) ... URL encoded Room ID

## Retrieve content of a room [GET]

### response [200] OK

{
"id": "triominos/v1/alice/bob",
"type": "triominos/v1",
"users": [ "alice", "bob" ],
"messages": [{
"timestamp": 1429084002258,
"from": "alice",
"type": "text",
"message": "Hey bob! How are you today?"
}, {
"timestamp": 1429084002258,
"from": "bob",
"type": "text",
"message": "Hi Alice :)"
}, {
"timestamp": 1429084002258,
"from": "bob",
"type": "text",
"message": "Good thanks, let's play"
}, {
"timestamp": 1429084002258,
"from": "$$",
"type": "event",
"message": "game_started"
}]
}

### response [404] Not found

No room found with given ID.

### response [401] Unauthorized

If authToken is invalid or user isn't a participant in the room, and not `API_SECRET`.

# Messages [/chat/v1/auth/:authToken/rooms/:roomId/messages]

+ Parameters
+ authToken (string, required) ... Authentication token
+ roomId (string, required) ... URL encoded Room ID

## Add a message [POST]

Append a new message to the room and updates room's TTL. If the number of messages in the room exceeds `MAX_MESSAGES`, the oldest will be discarded.

### body (application/json)

{
"timestamp": 1429084016939,
"type": "txt",
"message": "Hey bob! How are you today?"
}

### response [200] OK

### response [401] Unauthorized

If authToken is invalid or user isn't a participant in the room, and not `API_SECRET`.

### response [403] Forbidden

When linked to users service, will perform ban check. Banned `:username`s will receive 403 error no matter validity of a token.

### response [404] Not Found

No room found with given ID.

### design note

A notification will be sent to all users in the room (except the sender of the message and those that blocked him).

{
"from": "chat/v1",
"type": "message",
"data": {
"timestamp": 1429084002258,
"from": "bob",
"type": "text",
"message": "Good thanks, let's play"
}
"push": {…} // optional, will contain whatever is in `req.body.push`.
}

# System Messages [/chat/v1/auth/:apiSecret/system-messages]

## Add a message [POST]

Join a room, append a new message and updates its TTL.
If the number of messages in the room exceeds `MAX_MESSAGES`, the oldest will be discarded.

### body (application/json)

{
"type": "triominos/v1",
"users": [ "alice", "bob" ]
"timestamp": 1429084016939,
"message": "ALICE_DISCONNECTED"
}

### response [200] OK

### design note

Response codes and design notes as for the /messages entrypoint.