154 lines
3.7 KiB
PHP
154 lines
3.7 KiB
PHP
<?php
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namespace App\Classes\Sock;
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use Illuminate\Support\Facades\Log;
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final class SocketServer {
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private const LOGKEY = 'SS-';
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private $server; // Our server resource
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private string $bind; // The IP address to bind to
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private int $port; // The Port to bind to
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private int $backlog = 5; // Number of incoming connections queued
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private int $type; // Socket type
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private array $handler; // The class and method that will handle our connection
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public function __construct(int $port,string $bind='0.0.0.0',int $type=SOCK_STREAM)
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{
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$this->bind = $bind;
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$this->port = $port;
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$this->type = $type;
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$this->createSocket();
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if (socket_bind($this->server,$this->bind,$this->port) === FALSE)
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throw new SocketException(SocketException::CANT_BIND_SOCKET,socket_strerror(socket_last_error($this->server)));
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}
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public function __get($key)
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{
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switch ($key) {
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case 'handler':
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return $this->handler;
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default:
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throw new \Exception('Unknown key: '.$key);
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}
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}
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public function __set($key,$value)
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{
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switch ($key) {
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case 'handler':
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return $this->handler = $value;
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default:
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throw new \Exception('Unknown key: '.$key);
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}
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}
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/**
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* Create our Socket
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*
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* @throws SocketException
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*/
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private function createSocket(): void
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{
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/**
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* Check dependencies
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*/
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if (! extension_loaded('sockets'))
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throw new SocketException(SocketException::CANT_ACCEPT,'Missing sockets extension');
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if (! extension_loaded('pcntl'))
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throw new SocketException(SocketException::CANT_ACCEPT,'Missing pcntl extension');
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switch ($this->type) {
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case SOCK_STREAM:
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$this->server = socket_create(AF_INET|AF_INET6,$this->type,SOL_TCP);
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break;
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case SOCK_DGRAM:
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$this->server = socket_create(AF_INET|AF_INET6,$this->type,SOL_UDP);
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break;
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default:
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throw new \Exception('Unknown socket_type:'.$this->type);
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}
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if ($this->server === FALSE)
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throw new SocketException(SocketException::CANT_CREATE_SOCKET,socket_strerror(socket_last_error()));
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socket_set_option($this->server,SOL_SOCKET,SO_REUSEADDR,1);
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}
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/**
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* Our main loop where we listen for connections
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*
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* @throws SocketException
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*/
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public function listen()
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{
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if (! $this->handler)
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throw new SocketException(SocketException::CANT_LISTEN,'Handler not set.');
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if (in_array($this->type,[SOCK_STREAM,SOCK_SEQPACKET]))
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if (socket_listen($this->server,$this->backlog) === FALSE)
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throw new SocketException(SocketException::CANT_LISTEN,socket_strerror(socket_last_error($this->server)));
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Log::info(sprintf('%s:- Listening on [%s:%d]',self::LOGKEY,$this->bind,$this->port));
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switch ($this->type) {
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case SOCK_STREAM:
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$this->loop_tcp();
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break;
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case SOCK_DGRAM:
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$this->loop_udp();
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break;
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}
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socket_close($this->server);
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Log::info(sprintf('%s:= Closed [%s:%d]',self::LOGKEY,$this->bind,$this->port));
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}
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/**
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* Manage and execute incoming connections
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*
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* @throws SocketException
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*/
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private function loop_tcp(): void
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{
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while (TRUE) {
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if (($accept = socket_accept($this->server)) === FALSE)
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throw new SocketException(SocketException::CANT_ACCEPT,socket_strerror(socket_last_error($this->server)));
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try {
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$r = new SocketClient($accept);
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} catch (\Exception $e) {
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Log::error(sprintf('%s:! Creating Socket client failed? [%s]',self::LOGKEY,$e->getMessage()));
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socket_close($accept);
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continue;
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}
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$this->handler[0]->{$this->handler[1]}($r);
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}
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}
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private function loop_udp(): void
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{
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while (TRUE) {
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$r = new SocketClient($this->server);
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if ($r->hasData(30)) {
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$this->handler[0]->{$this->handler[1]}($r);
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// Sleep so our thread has a chance to pick up the data from our connection
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usleep(50000);
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}
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}
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}
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} |