implement server class

README.md

@@ -3,7 +3,7 @@
 PHP 8 / Composer Library for NPS Protocol
 
 Unlike Titan for Gemini, NPS is the satellite for Nex protocol (see also [nex-php](https://github.com/YGGverse/nex-php))\
-it listen for dot in line to signal the package ending.
+it listen for single dot in line to signal the package ending.
 
 ## Specification
 
@@ -52,9 +52,12 @@ $server->start(
         string $connect
     ) {
         printf(
-            'connection: %s request: %s content: %s',
+            'connection: %s request: %s',
             $connect,
-            $request,
+            $request
+        );
+
+        var_dump(
             $content
         );
     }

src/Server.php

@@ -0,0 +1,184 @@
+<?php
+
+namespace Yggverse\Nps;
+
+class Server
+{
+    private string $_host;
+    private int    $_port;
+    private int    $_size;
+    private bool   $_live;
+
+    public function __construct(
+        string $host = '127.0.0.1',
+        int    $port = 1915,
+        int    $size = 1024,
+        bool   $live = true
+    ) {
+        $this->setHost(
+            $host
+        );
+
+        $this->setPort(
+            $port
+        );
+
+        $this->setSize(
+            $size
+        );
+
+        $this->setLive(
+            $live
+        );
+    }
+
+    public function getHost(): string
+    {
+        return $this->_host;
+    }
+
+    public function setHost(
+        string $value
+    ): void
+    {
+        if (false === filter_var($value, FILTER_VALIDATE_IP))
+        {
+            throw new \Exception();
+        }
+
+        if (strpos($value, ':'))
+        {
+            $value = sprintf(
+                '[%s]',
+                $value
+            );
+        }
+
+        $this->_host = $value;
+    }
+
+    public function getPort(): int
+    {
+        return $this->_port;
+    }
+
+    public function setPort(
+        int $value
+    ): void
+    {
+        $this->_port = $value;
+    }
+
+    public function getSize(): int
+    {
+        return $this->_size;
+    }
+
+    public function setSize(
+        int $value
+    ): void
+    {
+        $this->_size = $value;
+    }
+
+    public function getLive(): bool
+    {
+        return $this->_live;
+    }
+
+    public function setLive(
+        bool $value
+    ): void
+    {
+        $this->_live = $value;
+    }
+
+    public function start(
+        ?callable $handler = null
+    ): void
+    {
+        $socket = stream_socket_server(
+            sprintf(
+                'tcp://%s:%d',
+                $this->_host,
+                $this->_port
+            ),
+            $error,
+            $message,
+            STREAM_SERVER_BIND | STREAM_SERVER_LISTEN
+        );
+
+        do
+        {
+            if (!$this->_live)
+            {
+                fclose(
+                    $socket
+                );
+
+                break;
+            }
+
+            $incoming = stream_socket_accept(
+                $socket, -1, $connect
+            );
+
+            stream_set_blocking(
+                $incoming,
+                true
+            );
+
+            $request = fread(
+                $incoming,
+                $this->_size
+            );
+
+            $content = '';
+
+            do
+            {
+                $line = trim(
+                    fread(
+                        $incoming,
+                        $this->_size
+                    )
+                );
+
+                if ($line == '.')
+                {
+                    break;
+                }
+
+                $content .= $line;
+
+            } while ($this->_live);
+
+            stream_set_blocking(
+                $incoming,
+                false
+            );
+
+            fclose(
+                $incoming
+            );
+
+            if ($handler)
+            {
+                $response = call_user_func(
+                    $handler,
+                    $content,
+                    $request,
+                    $connect
+                );
+            }
+
+        } while ($this->_live);
+    }
+
+    public function stop(): void
+    {
+        $this->setLive(
+            false
+        );
+    }
+}