chookchat/server

Chookpen Server

Key features:

• Real-time messaging with WebSocket support
• User authentication and account management
• Persistent message history
• Simple HTTP API for basic operations
• Built-in static file serving for web clients
• Support for encryption keys
• Active user tracking and presence notifications

Requirements

• Java 17 or later
• Caddy (for HTTPS reverse proxy) - Download from caddyserver.com
• Some kind of OS, any should do
• 50mb free space, 30mb avaliable ram (yes I know, very bloated and inefficient)

Running the Server

Prebuilt binaries are available for immediate use. Simply download the latest server release and run:

./run

The server will start on port 7070 by default.

Building from Source

First, install Gradle. Unless you want to painfully compile everything manually, Gradle is your best friend.

Clone the repository and CD into the server directory. Then run:

gradle build

To create a distribution (you don't need to run gradle build, it will do that for you):

./gradlew installDist

To run the server, create the files chatHistory and userDatabase in the directory you're running it from, then run the script to start Chookpen.

API Documentation

HTTP Endpoints

Send Message

• Endpoint: /api/send/{content}
• Content Format: username:{name}token:{token}message:{message}
• Response: "Success" or error message

Create Account

• Endpoint: /api/createaccount/{content}
• Content Format: username:{name}token:{password}
• Response: "Success" or error message

Sync Messages

• Endpoint: /api/syncmessages/{content}
• Content Format: username:{name}token:{token}
• Response: Chat history or error message

Auth Key (being worked on for E2EE)

• Endpoint: /api/authkey/{content}
• Content Format: username:{name}token:{token}authkey:{key}
• Response: "Success" or error message

WebSocket Interface

Connect to /api/websocket for real-time updates.

WebSocket Messages

1. Server to Client:

• Ping messages: "ping"
• User updates: "!users:{user1,user2,user3}"
• Chat messages: "username: message"

2. Client to Server:

• Pong response: "pong"
• Message format: Same as HTTP send endpoint

Setting up HTTPS with Caddy

Caddy provides automatic HTTPS and serves as a reverse proxy for your Chookpen server. Download from caddyserver.com or from your Linux/BSD/Illumos/Haiku/TempleOS/whatever distribution's package manager.

1. Create a Caddyfile in your server directory:

chat.yourdomain.com {
    reverse_proxy localhost:7070
}

2. Start Caddy:

caddy run

Caddy will automatically obtain and manage SSL certificates for your domain.

Client Deployment

Place your client files in the src/main/resources/public directory. The server will automatically serve these static files, making the client accessible at your server's root URL.

Maintenance

Database Files

• userDatabase: Contains user credentials in format username:token:salt
• chatHistory: Stores message history
• Regular backups recommended

Health Checks

• Server automatically maintains WebSocket connections
• Dead sessions are cleaned up automatically
• Active user count is logged

Security Recommendations

• Keep database files secure
• Regular system updates
• Monitor for unusual login patterns
• Back up regularly:

#!/bin/bash
backup_dir="/path/to/backups"
date_stamp=$(date +%Y%m%d)
cp userDatabase "${backup_dir}/userDatabase_${date_stamp}"
cp chatHistory "${backup_dir}/chatHistory_${date_stamp}"