/**
* 想某个用户网关发送命令和消息
* @param int $client_id
* @param int $cmd
* @param string $message
* @return boolean
*/
protected static function sendCmdAndMessageToClient($client_id, $cmd, $message, $ext_data = '')
{
// 如果是发给当前用户则直接获取上下文中的地址
if ($client_id === Context::$client_id || $client_id === null) {
$address = long2ip(Context::$local_ip) . ':' . Context::$local_port;
$connection_id = Context::$connection_id;
} else {
$address_data = Context::clientIdToAddress($client_id);
$address = long2ip($address_data['local_ip']) . ":{$address_data['local_port']}";
$connection_id = $address_data['connection_id'];
}
$gateway_data = GatewayProtocol::$empty;
$gateway_data['cmd'] = $cmd;
$gateway_data['connection_id'] = $connection_id;
$gateway_data['body'] = $message;
if (!empty($ext_data)) {
$gateway_data['ext_data'] = $ext_data;
}
return self::sendToGateway($address, $gateway_data);
}
/**
* 当gateway转发来数据时
* @param TcpConnection $connection
* @param mixed $data
*/
public function onGatewayMessage($connection, $data)
{
$cmd = $data['cmd'];
if ($cmd === GatewayProtocol::CMD_PING) {
return;
}
// 上下文数据
Context::$client_ip = $data['client_ip'];
Context::$client_port = $data['client_port'];
Context::$local_ip = $data['local_ip'];
Context::$local_port = $data['local_port'];
Context::$connection_id = $data['connection_id'];
Context::$client_id = Context::addressToClientId($data['local_ip'], $data['local_port'], $data['connection_id']);
// $_SERVER变量
$_SERVER = array('REMOTE_ADDR' => long2ip($data['client_ip']), 'REMOTE_PORT' => $data['client_port'], 'GATEWAY_ADDR' => long2ip($data['local_ip']), 'GATEWAY_PORT' => $data['gateway_port'], 'GATEWAY_CLIENT_ID' => Context::$client_id);
// 尝试解析session
if ($data['ext_data'] != '') {
$_SESSION = Context::sessionDecode($data['ext_data']);
} else {
$_SESSION = null;
}
// 备份一次$data['ext_data']，请求处理完毕后判断session是否和备份相等，不相等就更新session
$session_str_copy = $data['ext_data'];
if ($this->processTimeout) {
pcntl_alarm($this->processTimeout);
}
// 尝试执行Event::onConnection、Event::onMessage、Event::onClose
switch ($cmd) {
case GatewayProtocol::CMD_ON_CONNECTION:
if ($this->_eventOnConnect) {
call_user_func($this->_eventOnConnect, Context::$client_id);
}
break;
case GatewayProtocol::CMD_ON_MESSAGE:
if ($this->_eventOnMessage) {
call_user_func($this->_eventOnMessage, Context::$client_id, $data['body']);
}
break;
case GatewayProtocol::CMD_ON_CLOSE:
if ($this->_eventOnClose) {
call_user_func($this->_eventOnClose, Context::$client_id);
}
break;
}
if ($this->processTimeout) {
pcntl_alarm(0);
}
// 判断session是否被更改
$session_str_now = $_SESSION !== null ? Context::sessionEncode($_SESSION) : '';
if ($session_str_copy != $session_str_now) {
\Utils\GatewayWorker\Lib\Gateway::updateSocketSession(Context::$client_id, $session_str_now);
}
Context::clear();
}
