npsapp

KevaChat Server for NPS Protocol

Listen connections on 1915 port and save messages to given namespace in KevaCoin blockchain

To read messages, use KevaChat webapp, geminiapp or any KevaCoin explorer!

Components

kevachat/kevacoin-php - KevaCoin library for PHP 8
cboden/ratchet - Asynchronous Socket server
gregwar/captcha - Captcha library to prevent spam abuse
ixnode/php-cli-image - Library converts captcha to ASCII format

Install

git clone https://github.com/kevachat/npsapp.git
cd npsapp
composer update

Setup

cd npsapp
cp config/example.json config/name.json - edit connection and provide room namespace

Launch

php src/app.php name.json - where name.json argument is any config, placed at config folder

Autostart

Launch server as the systemd service

You can create as many servers as wanted by providing separated config for each instance!

Following example require npsapp installed into the home directory of npsapp user (useradd -m npsapp)

sudo nano /etc/systemd/system/npsapp.service - create new service:

[Unit]
After=network.target

[Service]
Type=simple
User=npsapp
Group=npsapp
ExecStart=/usr/bin/php /home/npsapp/npsapp/src/app.php name.json
StandardOutput=file:/home/npsapp/debug.log
StandardError=file:/home/npsapp/error.log
Restart=on-failure

[Install]
WantedBy=multi-user.target

sudo systemctl daemon-reload - reload systemd configuration
sudo systemctl enable npsapp - enable npsapp service on system startup
sudo systemctl start npsapp - start npsapp server

Clients

nc 127.0.0.1 1915 - IPv4 only, install netcat-openbsd to add IPv6 support
ncat 127.0.0.1 1915
telnet 127.0.0.1 1915

Servers

[201:23b4:991a:634d:8359:4521:5576:15b7]:1915 - Yggdrasil instance by YGGverse

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