/**
* Read and parse the response
*
* @param resource $fp Handle to an open socket
* @throws \Exception
*/
private function readResponse($fp)
{
$res = fread($fp, 3);
if (strpos($res, 0xff) !== 0) {
throw new \Exception('Invalid ping response');
}
$res = fread($fp, 2048);
$data = explode(pack('n', 0), $res);
$this->gs->setName(self::decodeUTF16BEString($data[3]));
$this->gs->setPlayerCount((int) self::decodeUTF16BEString($data[4]));
$this->gs->setMaxPlayers((int) self::decodeUTF16BEString($data[5]));
}
/**
* Parse the JSON string and set server status properties
*
* @param string $jsonString
* @throws \Exception
*/
private function parseJSON($jsonString)
{
$json = json_decode($jsonString);
if (!$json) {
throw new \Exception('Invalid JSON string');
}
$name = $json->description;
$this->gs->setName(is_string($name) ? $name : $name->text);
$this->gs->setPlayerCount($json->players->online);
$this->gs->setMaxPlayers($json->players->max);
if (property_exists($json->players, 'sample')) {
$players = array();
foreach ($json->players->sample as $player) {
$players[] = $player->name;
}
$this->gs->setPlayerList($players);
}
}
/**
* Parse the players section of the response
*
* @param resource $fp Handle to an open socket
*/
private function parsePlayers($fp)
{
$players = array();
$val = '';
while (true) {
$res = fread($fp, 1);
if ($res === "" || $res === false) {
if (strlen($val) === 0) {
break;
} else {
$players[] = $val;
$val = '';
}
} else {
$val .= $res;
}
}
$this->gs->setPlayerList($players);
}
