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authormarvin-borner@live.com2018-04-10 21:50:16 +0200
committermarvin-borner@live.com2018-04-10 21:54:48 +0200
commitfc9401f04a3aca5abb22f87ebc210de8afe11d32 (patch)
treeb0b310f3581764ec3955f4e496a05137a32951c3 /assets/php/vendor/react/socket/src/Connection.php
parent286d643180672f20526f3dc3bd19d7b751e2fa97 (diff)
Initial Commit
Diffstat (limited to 'assets/php/vendor/react/socket/src/Connection.php')
-rw-r--r--assets/php/vendor/react/socket/src/Connection.php178
1 files changed, 178 insertions, 0 deletions
diff --git a/assets/php/vendor/react/socket/src/Connection.php b/assets/php/vendor/react/socket/src/Connection.php
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+++ b/assets/php/vendor/react/socket/src/Connection.php
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+<?php
+
+namespace React\Socket;
+
+use Evenement\EventEmitter;
+use React\EventLoop\LoopInterface;
+use React\Stream\DuplexResourceStream;
+use React\Stream\Util;
+use React\Stream\WritableResourceStream;
+use React\Stream\WritableStreamInterface;
+
+/**
+ * The actual connection implementation for ConnectionInterface
+ *
+ * This class should only be used internally, see ConnectionInterface instead.
+ *
+ * @see ConnectionInterface
+ * @internal
+ */
+class Connection extends EventEmitter implements ConnectionInterface
+{
+ /**
+ * Internal flag whether this is a Unix domain socket (UDS) connection
+ *
+ * @internal
+ */
+ public $unix = false;
+
+ /**
+ * Internal flag whether encryption has been enabled on this connection
+ *
+ * Mostly used by internal StreamEncryption so that connection returns
+ * `tls://` scheme for encrypted connections instead of `tcp://`.
+ *
+ * @internal
+ */
+ public $encryptionEnabled = false;
+
+ /** @internal */
+ public $stream;
+
+ private $input;
+
+ public function __construct($resource, LoopInterface $loop)
+ {
+ // PHP < 5.6.8 suffers from a buffer indicator bug on secure TLS connections
+ // as a work-around we always read the complete buffer until its end.
+ // The buffer size is limited due to TCP/IP buffers anyway, so this
+ // should not affect usage otherwise.
+ // See https://bugs.php.net/bug.php?id=65137
+ // https://bugs.php.net/bug.php?id=41631
+ // https://github.com/reactphp/socket-client/issues/24
+ $clearCompleteBuffer = PHP_VERSION_ID < 50608;
+
+ // PHP < 7.1.4 (and PHP < 7.0.18) suffers from a bug when writing big
+ // chunks of data over TLS streams at once.
+ // We try to work around this by limiting the write chunk size to 8192
+ // bytes for older PHP versions only.
+ // This is only a work-around and has a noticable performance penalty on
+ // affected versions. Please update your PHP version.
+ // This applies to all streams because TLS may be enabled later on.
+ // See https://github.com/reactphp/socket/issues/105
+ $limitWriteChunks = (PHP_VERSION_ID < 70018 || (PHP_VERSION_ID >= 70100 && PHP_VERSION_ID < 70104));
+
+ $this->input = new DuplexResourceStream(
+ $resource,
+ $loop,
+ $clearCompleteBuffer ? -1 : null,
+ new WritableResourceStream($resource, $loop, null, $limitWriteChunks ? 8192 : null)
+ );
+
+ $this->stream = $resource;
+
+ Util::forwardEvents($this->input, $this, array('data', 'end', 'error', 'close', 'pipe', 'drain'));
+
+ $this->input->on('close', array($this, 'close'));
+ }
+
+ public function isReadable()
+ {
+ return $this->input->isReadable();
+ }
+
+ public function isWritable()
+ {
+ return $this->input->isWritable();
+ }
+
+ public function pause()
+ {
+ $this->input->pause();
+ }
+
+ public function resume()
+ {
+ $this->input->resume();
+ }
+
+ public function pipe(WritableStreamInterface $dest, array $options = array())
+ {
+ return $this->input->pipe($dest, $options);
+ }
+
+ public function write($data)
+ {
+ return $this->input->write($data);
+ }
+
+ public function end($data = null)
+ {
+ $this->input->end($data);
+ }
+
+ public function close()
+ {
+ $this->input->close();
+ $this->handleClose();
+ $this->removeAllListeners();
+ }
+
+ public function handleClose()
+ {
+ if (!is_resource($this->stream)) {
+ return;
+ }
+
+ // Try to cleanly shut down socket and ignore any errors in case other
+ // side already closed. Shutting down may return to blocking mode on
+ // some legacy versions, so reset to non-blocking just in case before
+ // continuing to close the socket resource.
+ // Underlying Stream implementation will take care of closing file
+ // handle, so we otherwise keep this open here.
+ @stream_socket_shutdown($this->stream, STREAM_SHUT_RDWR);
+ stream_set_blocking($this->stream, false);
+ }
+
+ public function getRemoteAddress()
+ {
+ return $this->parseAddress(@stream_socket_get_name($this->stream, true));
+ }
+
+ public function getLocalAddress()
+ {
+ return $this->parseAddress(@stream_socket_get_name($this->stream, false));
+ }
+
+ private function parseAddress($address)
+ {
+ if ($address === false) {
+ return null;
+ }
+
+ if ($this->unix) {
+ // remove trailing colon from address for HHVM < 3.19: https://3v4l.org/5C1lo
+ // note that technically ":" is a valid address, so keep this in place otherwise
+ if (substr($address, -1) === ':' && defined('HHVM_VERSION_ID') && HHVM_VERSION_ID < 31900) {
+ $address = (string)substr($address, 0, -1);
+ }
+
+ // work around unknown addresses should return null value: https://3v4l.org/5C1lo and https://bugs.php.net/bug.php?id=74556
+ // PHP uses "\0" string and HHVM uses empty string (colon removed above)
+ if ($address === '' || $address[0] === "\x00" ) {
+ return null;
+ }
+
+ 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) !== '[') {
+ $port = substr($address, $pos + 1);
+ $address = '[' . substr($address, 0, $pos) . ']:' . $port;
+ }
+
+ return ($this->encryptionEnabled ? 'tls' : 'tcp') . '://' . $address;
+ }
+}