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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php declare(strict_types=1);
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/*
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 * This file is part of the Monolog package.
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 *
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 * (c) Jordi Boggiano <j.boggiano@seld.be>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace Monolog\Handler\SyslogUdp;
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use Monolog\Utils;
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use Socket;
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class UdpSocket
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{
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    protected const DATAGRAM_MAX_LENGTH = 65023;
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    /** @var string */
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    protected $ip;
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    /** @var int */
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    protected $port;
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    /** @var resource|Socket|null */
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    protected $socket = null;
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    public function __construct(string $ip, int $port = 514)
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    {
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        $this->ip = $ip;
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        $this->port = $port;
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    }
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    /**
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     * @param  string $line
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     * @param  string $header
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     * @return void
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     */
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    public function write($line, $header = "")
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    {
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        $this->send($this->assembleMessage($line, $header));
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    }
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    public function close(): void
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    {
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        if (is_resource($this->socket) || $this->socket instanceof Socket) {
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            socket_close($this->socket);
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            $this->socket = null;
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        }
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    }
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    /**
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     * @return resource|Socket
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     */
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    protected function getSocket()
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    {
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        if (null !== $this->socket) {
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            return $this->socket;
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        }
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        $domain = AF_INET;
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        $protocol = SOL_UDP;
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        // Check if we are using unix sockets.
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        if ($this->port === 0) {
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            $domain = AF_UNIX;
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            $protocol = IPPROTO_IP;
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        }
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        $this->socket = socket_create($domain, SOCK_DGRAM, $protocol) ?: null;
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        if (null === $this->socket) {
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            throw new \RuntimeException('The UdpSocket to '.$this->ip.':'.$this->port.' could not be opened via socket_create');
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        }
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        return $this->socket;
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    }
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    protected function send(string $chunk): void
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    {
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        socket_sendto($this->getSocket(), $chunk, strlen($chunk), $flags = 0, $this->ip, $this->port);
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    }
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    protected function assembleMessage(string $line, string $header): string
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    {
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        $chunkSize = static::DATAGRAM_MAX_LENGTH - strlen($header);
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        return $header . Utils::substr($line, 0, $chunkSize);
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    }
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}