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<?php |
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namespace React\Socket; |
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use Evenement\EventEmitter; |
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use React\EventLoop\Loop; |
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use React\EventLoop\LoopInterface; |
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use InvalidArgumentException; |
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use RuntimeException; |
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/** |
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* The `UnixServer` class implements the `ServerInterface` and |
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* is responsible for accepting plaintext connections on unix domain sockets. |
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* |
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* ```php |
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* $server = new React\Socket\UnixServer('unix:///tmp/app.sock'); |
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* ``` |
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* |
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* See also the `ServerInterface` for more details. |
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* |
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* @see ServerInterface |
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* @see ConnectionInterface |
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*/ |
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final class UnixServer extends EventEmitter implements ServerInterface |
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{ |
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private $master; |
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private $loop; |
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private $listening = false; |
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/** |
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* Creates a plaintext socket server and starts listening on the given unix socket |
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* |
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* This starts accepting new incoming connections on the given address. |
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* See also the `connection event` documented in the `ServerInterface` |
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* for more details. |
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* |
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* ```php |
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* $server = new React\Socket\UnixServer('unix:///tmp/app.sock'); |
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* ``` |
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* |
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* This class takes an optional `LoopInterface|null $loop` parameter that can be used to |
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* pass the event loop instance to use for this object. You can use a `null` value |
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* here in order to use the [default loop](https://github.com/reactphp/event-loop#loop). |
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* This value SHOULD NOT be given unless you're sure you want to explicitly use a |
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* given event loop instance. |
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* |
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* @param string $path |
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* @param ?LoopInterface $loop |
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* @param array $context |
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* @throws InvalidArgumentException if the listening address is invalid |
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* @throws RuntimeException if listening on this address fails (already in use etc.) |
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*/ |
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public function __construct($path, LoopInterface $loop = null, array $context = array()) |
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{ |
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$this->loop = $loop ?: Loop::get(); |
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if (\strpos($path, '://') === false) { |
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$path = 'unix://' . $path; |
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} elseif (\substr($path, 0, 7) !== 'unix://') { |
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throw new \InvalidArgumentException( |
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'Given URI "' . $path . '" is invalid (EINVAL)', |
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\defined('SOCKET_EINVAL') ? \SOCKET_EINVAL : 22 |
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); |
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} |
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$this->master = @\stream_socket_server( |
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$path, |
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$errno, |
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$errstr, |
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\STREAM_SERVER_BIND | \STREAM_SERVER_LISTEN, |
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\stream_context_create(array('socket' => $context)) |
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); |
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if (false === $this->master) { |
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// PHP does not seem to report errno/errstr for Unix domain sockets (UDS) right now. |
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// This only applies to UDS server sockets, see also https://3v4l.org/NAhpr. |
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// Parse PHP warning message containing unknown error, HHVM reports proper info at least. |
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if ($errno === 0 && $errstr === '') { |
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$error = \error_get_last(); |
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if (\preg_match('/\(([^\)]+)\)|\[(\d+)\]: (.*)/', $error['message'], $match)) { |
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$errstr = isset($match[3]) ? $match['3'] : $match[1]; |
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$errno = isset($match[2]) ? (int)$match[2] : 0; |
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} |
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} |
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throw new \RuntimeException( |
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'Failed to listen on Unix domain socket "' . $path . '": ' . $errstr . SocketServer::errconst($errno), |
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$errno |
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); |
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} |
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\stream_set_blocking($this->master, 0); |
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$this->resume(); |
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} |
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public function getAddress() |
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{ |
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if (!\is_resource($this->master)) { |
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return null; |
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} |
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return 'unix://' . \stream_socket_get_name($this->master, false); |
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} |
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public function pause() |
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{ |
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if (!$this->listening) { |
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return; |
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} |
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$this->loop->removeReadStream($this->master); |
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$this->listening = false; |
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} |
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public function resume() |
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{ |
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if ($this->listening || !is_resource($this->master)) { |
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return; |
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} |
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$that = $this; |
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$this->loop->addReadStream($this->master, function ($master) use ($that) { |
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try { |
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$newSocket = SocketServer::accept($master); |
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} catch (\RuntimeException $e) { |
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$that->emit('error', array($e)); |
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return; |
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} |
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$that->handleConnection($newSocket); |
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}); |
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$this->listening = true; |
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} |
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public function close() |
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{ |
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if (!\is_resource($this->master)) { |
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return; |
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} |
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$this->pause(); |
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\fclose($this->master); |
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$this->removeAllListeners(); |
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} |
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/** @internal */ |
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public function handleConnection($socket) |
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{ |
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$connection = new Connection($socket, $this->loop); |
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$connection->unix = true; |
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$this->emit('connection', array( |
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$connection |
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)); |
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} |
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} |
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deployphp /
deployer
