PHP / Composer Library for NPS Protocol
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README.md

Archived!

Use Ratchet IoServer - asynchronous WebSocket in PHP as more featured replacement to this library.

nps-php

PHP 8 / Composer Library for NPS Protocol

Like Titan for Gemini, NPS is the satellite for NEX protocol (see also nex-php)
it listen for single dot in line to signal the package ending.

Specification

nex://nightfall.city/nps/

Usage

composer require yggverse/nps

Server

Build interactive server instance to listen NPS protocol connections!

$server = new \Yggverse\Nps\Server;

Provide optional host, port, size, line and live arguments in constructor:

$server = new \Yggverse\Nps\Server('127.0.0.1', 1915);

Alternatively, use following setters after object initiation

Server::setHost

Bind server host to listen incoming connections, 127.0.0.1 by default

Server::getHost

Get current server host

Server::setPort

Bind server port to listen incoming connections, 1915 by default

Server::getPort

Get current server port

Server::setSize

Set total content length limit by mb_strlen, 0 by default (unlimited)

Server::getSize

Get current content length limit

Server::setLine

Set packet line limit in bytes passing to fread, 1024 by default

Server::getLine

Get current packet line limit

Server::setLive

Set server status true|false to shutdown immediately

Server::getLive

Get current server status

Server::setWelcome

Define application logic on peer connection established

$server->setWelcome(
    function (
        string $connect
    ): ?string
    {
        printf(
            "connected: %s\n\r",
            $connect
        );

        return sprintf(
            "welcome, %s\n\r",
            $connect
        );
    }
);

Server::getWelcome

Get current Welcome function, null by default

Server::setPending

Define application logic on peer make initial request

$server->setPending(
    function (
        string $request,
        string $connect
    ): ?string
    {
        printf(
            'connection: %s requested: %s',
            $connect,
            $request,
        );

        return sprintf(
            'received: %s',
            $request
        );
    }
);

Server::getPending

Get current Pending function, null by default

Server::setHandler

Define basic application logic on complete packet received

$server->setHandler(
    function (
          bool $success,
        string $content,
        string $request,
        string $connect
    ): ?string
    {
        printf(
            'connection: %s request: %s',
            $connect,
            $request
        );

        if ($success)
        {
            var_dump(
                $content
            );
        }

        return 'thank you!';
    }
);

Server::getHandler

Get current Handler function, null by default

Server::start

Run server object

$server->start();

Optionally, define handler function as the argument to process application logic dependent of client request

$server->start(
    function (
          bool $success,
        string $content,
        string $request,
        string $connect
    ): ?string
    {
        printf(
            'connection: %s request: %s',
            $connect,
            $request
        );

        if ($success)
        {
            var_dump(
                $content
            );
        }

        return 'thank you!'; // null|string response
    }
);

Server::stop

Stop server instance.

Same to Server::setLive(false)

Testing

  1. nc 127.0.0.1 1915 - connect server using nc
  2. test - enter the target path
  3. YOUR MESSAGE GOES HERE - enter the message text
  4. . - commit package with dot

To send any file:

test
╦ ╦╔═╗╔═╗╔╦╗╦═╗╔═╗╔═╗╦╦
╚╦╝║ ╦║ ╦ ║║╠╦╝╠═╣╚═╗║║
 ╩ ╚═╝╚═╝═╩╝╩╚═╩ ╩╚═╝╩╩═╝
.

cat file.txt | nc 127.0.0.1 1915