// 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));
};
// 当客户端关闭连接时，关闭远程服务端的连接
$connection->onClose = function ($connection) {
$connection->opposite->close();
$connection->opposite = null;
};
// 当客户端连接上有错误时，关闭远程服务端连接
$connection->onError = function ($connection, $code, $msg) {
echo "connection err code:{$code} msg:{$msg}\n";
$connection->close();
if (isset($connection->opposite)) {
$connection->opposite->close();
}
};
// 执行远程连接
$remote_connection->connect();
// 改变当前连接的状态为STAGE_STREAM，即开始转发数据流
$connection->state = STAGE_STREAM;
//转发首个数据包，包含由客户端封装的目标地址，端口号等信息
$buffer = substr($buffer, 3);
$buffer = $connection->encryptor->encrypt($buffer);
$remote_connection->send($buffer);
}
};
// 如果不是在根目录启动，则运行runAll方法
if (!defined('GLOBAL_START')) {
Worker::runAll();
}
/**
* 检查gateway的通信端口是否都已经连
* 如果有未连接的端口，则尝试连接
* @return void
*/
public function checkGatewayConnections()
{
$key = 'GLOBAL_GATEWAY_ADDRESS';
$addresses_list = Store::instance('gateway')->get($key);
if (empty($addresses_list)) {
return;
}
foreach ($addresses_list as $addr) {
if (!isset($this->gatewayConnections[$addr]) && !isset($this->_connectingGatewayAddress[$addr]) && !isset($this->_badGatewayAddress[$addr])) {
$gateway_connection = new AsyncTcpConnection("GatewayProtocol://{$addr}");
$gateway_connection->remoteAddress = $addr;
$gateway_connection->onConnect = array($this, 'onConnectGateway');
$gateway_connection->onMessage = array($this, 'onGatewayMessage');
$gateway_connection->onClose = array($this, 'onClose');
$gateway_connection->onError = array($this, 'onError');
if (TcpConnection::$defaultMaxSendBufferSize == $gateway_connection->maxSendBufferSize) {
$gateway_connection->maxSendBufferSize = 10 * 1024 * 1024;
}
$gateway_connection->connect();
$this->_connectingGatewayAddress[$addr] = 1;
}
}
}
/**
* 尝试连接Gateway内部通讯地址
* @return void
*/
public function tryToConnectGateway($addr)
{
if (!isset($this->gatewayConnections[$addr]) && !isset($this->_connectingGatewayAddresses[$addr]) && isset($this->_gatewayAddresses[$addr])) {
$gateway_connection = new AsyncTcpConnection("GatewayProtocol://{$addr}");
$gateway_connection->remoteAddress = $addr;
$gateway_connection->onConnect = array($this, 'onConnectGateway');
$gateway_connection->onMessage = array($this, 'onGatewayMessage');
$gateway_connection->onClose = array($this, 'onGatewayClose');
$gateway_connection->onError = array($this, 'onGatewayError');
if (TcpConnection::$defaultMaxSendBufferSize == $gateway_connection->maxSendBufferSize) {
$gateway_connection->maxSendBufferSize = 50 * 1024 * 1024;
}
$gateway_data = GatewayProtocol::$empty;
$gateway_data['cmd'] = GatewayProtocol::CMD_WORKER_CONNECT;
$gateway_connection->send($gateway_data);
$gateway_connection->connect();
$this->_connectingGatewayAddresses[$addr] = $addr;
}
unset($this->_waitingConnectGatewayAddresses[$addr]);
}