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<?php
class Dnbd3Rpc {
const QUERY_UNREACHABLE = 1;
const QUERY_NOT_200 = 2;
const QUERY_NOT_JSON = 3;
/**
* Query given DNBD3 server for status information.
*
* @param string $server server address
* @param int $port server port
* @param bool $stats include general stats
* @param bool $clients include client list
* @param bool $images include image list
* @param bool $diskSpace include disk space stats
* @param bool $config get config
* @param bool $altservers list of alt servers with status
* @return int|array the queried data as an array, or false on error
*/
public static function query($server, $stats, $clients, $images, $diskSpace = false, $config = false, $altservers = false)
{
// Special case - local server
if ($server === '<self>') {
$server = '127.0.0.1:5003';
} elseif (($out = Dnbd3Util::matchAddress($server))) {
if (isset($out['v4'])) {
$server = $out['v4'];
} else {
$server = '[' . $out['v6'] . ']';
}
if (isset($out['port'])) {
$server .= $out['port'];
} else {
$server .= ':5003';
}
}
$url = 'http://' . $server . '/query?';
if ($stats) {
$url .= 'q=stats&';
}
if ($clients) {
$url .= 'q=clients&';
}
if ($images) {
$url .= 'q=images&';
}
if ($diskSpace) {
$url .= 'q=space&';
}
if ($config) {
$url .= 'q=config&';
}
if ($altservers) {
$url .= 'q=altservers&';
}
$str = Download::asString($url, 3, $code);
if ($str === false)
return self::QUERY_UNREACHABLE;
if ($code !== 200)
return self::QUERY_NOT_200;
$ret = json_decode($str, true);
if (!is_array($ret))
return self::QUERY_NOT_JSON;
return $ret;
}
}
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