$remote_connection->opposite->resumeRecv();
};
// 远程连接发来消息时，进行解密，转发给客户端
$remote_connection->onMessage = function ($remote_connection, $buffer) {
$remote_connection->opposite->send($remote_connection->opposite->encryptor->decrypt($buffer));
};
// 远程连接断开时，则断开客户端的连接
$remote_connection->onClose = function ($remote_connection) {
// 关闭对端
$remote_connection->opposite->close();
$remote_connection->opposite = null;
};
// 远程连接发生错误时（一般是建立连接失败错误），关闭客户端的连接
$remote_connection->onError = function ($remote_connection, $code, $msg) use($address) {
echo "remote_connection {$address} error code:{$code} msg:{$msg}\n";
$remote_connection->close();
if ($remote_connection->opposite) {
$remote_connection->opposite->close();
}
};
// 流量控制
$connection->onBufferFull = function ($connection) {
$connection->opposite->pauseRecv();
};
$connection->onBufferDrain = function ($connection) {
$connection->opposite->resumeRecv();
};
// 当客户端发来数据时，加密数据，并发给远程服务端
$connection->onMessage = function ($connection, $data) {
$connection->opposite->send($connection->encryptor->encrypt($data));
};
