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Directory >> /var/www/html/back/vendor/react/socket/src/

File / Folder	Size	Action
.	-
Connection.php	5.863KB	edt ren
ConnectionInterface.php	4.321KB	edt ren
Connector.php	7.798KB	edt ren
ConnectorInterface.php	2.041KB	edt ren
DnsConnector.php	4.942KB	edt ren
FdServer.php	7.349KB	edt ren
FixedUriConnector.php	1.042KB	edt ren
HappyEyeBallsConnection...	11.522KB	edt ren
HappyEyeBallsConnector.php	2.833KB	edt ren
LimitingServer.php	6.469KB	edt ren
SecureConnector.php	5.1KB	edt ren
SecureServer.php	7.563KB	edt ren
Server.php	3.664KB	edt ren
ServerInterface.php	5.146KB	edt ren
SocketServer.php	8.729KB	edt ren
StreamEncryption.php	5.156KB	edt ren
TcpConnector.php	7.132KB	edt ren
TcpServer.php	8.812KB	edt ren
TimeoutConnector.php	2.802KB	edt ren
UnixConnector.php	1.658KB	edt ren
UnixServer.php	5.025KB	edt ren

<?php

namespace React\Socket;

use Evenement\EventEmitter;
use React\EventLoop\Loop;
use React\EventLoop\LoopInterface;

/**
 * [Internal] The `FdServer` class implements the `ServerInterface` and
 * is responsible for accepting connections from an existing file descriptor.
 *
 * ```php
 * $socket = new React\Socket\FdServer(3);
 * ```
 *
 * Whenever a client connects, it will emit a `connection` event with a connection
 * instance implementing `ConnectionInterface`:
 *
 * ```php
 * $socket->on('connection', function (ConnectionInterface $connection) {
 *     echo 'Plaintext connection from ' . $connection->getRemoteAddress() . PHP_EOL;
 *     $connection->write('hello there!' . PHP_EOL);
 *     …
 * });
 * ```
 *
 * See also the `ServerInterface` for more details.
 *
 * @see ServerInterface
 * @see ConnectionInterface
 * @internal
 */
final class FdServer extends EventEmitter implements ServerInterface
{
    private $master;
    private $loop;
    private $unix = false;
    private $listening = false;

/**
     * Creates a socket server and starts listening on the given file descriptor
     *
     * This starts accepting new incoming connections on the given file descriptor.
     * See also the `connection event` documented in the `ServerInterface`
     * for more details.
     *
     * ```php
     * $socket = new React\Socket\FdServer(3);
     * ```
     *
     * If the given FD is invalid or out of range, it will throw an `InvalidArgumentException`:
     *
     * ```php
     * // throws InvalidArgumentException
     * $socket = new React\Socket\FdServer(-1);
     * ```
     *
     * If the given FD appears to be valid, but listening on it fails (such as
     * if the FD does not exist or does not refer to a socket server), it will
     * throw a `RuntimeException`:
     *
     * ```php
     * // throws RuntimeException because FD does not reference a socket server
     * $socket = new React\Socket\FdServer(0, $loop);
     * ```
     *
     * Note that these error conditions may vary depending on your system and/or
     * configuration.
     * See the exception message and code for more details about the actual error
     * condition.
     *
     * @param int|string     $fd   FD number such as `3` or as URL in the form of `php://fd/3`
     * @param ?LoopInterface $loop
     * @throws \InvalidArgumentException if the listening address is invalid
     * @throws \RuntimeException if listening on this address fails (already in use etc.)
     */
    public function __construct($fd, $loop = null)
    {
        if (\preg_match('#^php://fd/(\d+)$#', $fd, $m)) {
            $fd = (int) $m[1];
        }
        if (!\is_int($fd) || $fd < 0 || $fd >= \PHP_INT_MAX) {
            throw new \InvalidArgumentException(
                'Invalid FD number given (EINVAL)',
                \defined('SOCKET_EINVAL') ? \SOCKET_EINVAL : (\defined('PCNTL_EINVAL') ? \PCNTL_EINVAL : 22)
            );
        }

if ($loop !== null && !$loop instanceof LoopInterface) { // manual type check to support legacy PHP < 7.1
            throw new \InvalidArgumentException('Argument #2 ($loop) expected null|React\EventLoop\LoopInterface');
        }

$this->loop = $loop ?: Loop::get();

$errno = 0;
        $errstr = '';
        \set_error_handler(function ($_, $error) use (&$errno, &$errstr) {
            // Match errstr from PHP's warning message.
            // fopen(php://fd/3): Failed to open stream: Error duping file descriptor 3; possibly it doesn't exist: [9]: Bad file descriptor
            \preg_match('/\[(\d+)\]: (.*)/', $error, $m);
            $errno = isset($m[1]) ? (int) $m[1] : 0;
            $errstr = isset($m[2]) ? $m[2] : $error;
        });

$this->master = \fopen('php://fd/' . $fd, 'r+');

\restore_error_handler();

if (false === $this->master) {
            throw new \RuntimeException(
                'Failed to listen on FD ' . $fd . ': ' . $errstr . SocketServer::errconst($errno),
                $errno
            );
        }

$meta = \stream_get_meta_data($this->master);
        if (!isset($meta['stream_type']) || $meta['stream_type'] !== 'tcp_socket') {
            \fclose($this->master);

$errno = \defined('SOCKET_ENOTSOCK') ? \SOCKET_ENOTSOCK : 88;
            $errstr = \function_exists('socket_strerror') ? \socket_strerror($errno) : 'Not a socket';

throw new \RuntimeException(
                'Failed to listen on FD ' . $fd . ': ' . $errstr . ' (ENOTSOCK)',
                $errno
            );
        }

// Socket should not have a peer address if this is a listening socket.
        // Looks like this work-around is the closest we can get because PHP doesn't expose SO_ACCEPTCONN even with ext-sockets.
        if (\stream_socket_get_name($this->master, true) !== false) {
            \fclose($this->master);

$errno = \defined('SOCKET_EISCONN') ? \SOCKET_EISCONN : 106;
            $errstr = \function_exists('socket_strerror') ? \socket_strerror($errno) : 'Socket is connected';

throw new \RuntimeException(
                'Failed to listen on FD ' . $fd . ': ' . $errstr . ' (EISCONN)',
                $errno
            );
        }

// Assume this is a Unix domain socket (UDS) when its listening address doesn't parse as a valid URL with a port.
        // Looks like this work-around is the closest we can get because PHP doesn't expose SO_DOMAIN even with ext-sockets.
        $this->unix = \parse_url($this->getAddress(), \PHP_URL_PORT) === false;

\stream_set_blocking($this->master, false);

$this->resume();
    }

public function getAddress()
    {
        if (!\is_resource($this->master)) {
            return null;
        }

$address = \stream_socket_get_name($this->master, false);

if ($this->unix === true) {
            return 'unix://' . $address;
        }

// check if this is an IPv6 address which includes multiple colons but no square brackets
        $pos = \strrpos($address, ':');
        if ($pos !== false && \strpos($address, ':') < $pos && \substr($address, 0, 1) !== '[') {
            $address = '[' . \substr($address, 0, $pos) . ']:' . \substr($address, $pos + 1); // @codeCoverageIgnore
        }

return 'tcp://' . $address;
    }

public function pause()
    {
        if (!$this->listening) {
            return;
        }

$this->loop->removeReadStream($this->master);
        $this->listening = false;
    }

public function resume()
    {
        if ($this->listening || !\is_resource($this->master)) {
            return;
        }

$that = $this;
        $this->loop->addReadStream($this->master, function ($master) use ($that) {
            try {
                $newSocket = SocketServer::accept($master);
            } catch (\RuntimeException $e) {
                $that->emit('error', array($e));
                return;
            }
            $that->handleConnection($newSocket);
        });
        $this->listening = true;
    }

public function close()
    {
        if (!\is_resource($this->master)) {
            return;
        }

$this->pause();
        \fclose($this->master);
        $this->removeAllListeners();
    }

/** @internal */
    public function handleConnection($socket)
    {
        $connection = new Connection($socket, $this->loop);
        $connection->unix = $this->unix;

$this->emit('connection', array($connection));
    }
}