<?php
/**
* Get or set simple key-value-pairs, backed by the database
* to make them persistent.
*/
class Property
{
private static $cache = false;
/**
* Retrieve value from property store.
*
* @param string $key key to retrieve the value of
* @param mixed $default value to return if $key does not exist in the property store
* @return mixed the value attached to $key, or $default if $key does not exist
*/
private static function get($key, $default = false)
{
if (self::$cache === false) {
$NOW = time();
$res = Database::simpleQuery("SELECT name, dateline, value FROM property");
while ($row = $res->fetch(PDO::FETCH_ASSOC)) {
if ($row['dateline'] != 0 && $row['dateline'] < $NOW)
continue;
self::$cache[$row['name']] = $row['value'];
}
}
if (!isset(self::$cache[$key]))
return $default;
return self::$cache[$key];
}
/**
* Set value in property store.
*
* @param string $key key of value to set
* @param type $value the value to store for $key
* @param int $minage how long to keep this entry around at least, in minutes. 0 for infinite
*/
private static function set($key, $value, $minage = 0)
{
Database::exec("INSERT INTO property (name, value, dateline) VALUES (:key, :value, :dateline)"
. " ON DUPLICATE KEY UPDATE value = VALUES(value), dateline = VALUES(dateline)", array(
'key' => $key,
'value' => $value,
'dateline' => ($minage === 0 ? 0 : time() + ($minage * 60))
));
if (self::$cache !== false) {
self::$cache[$key] = $value;
}
}
public static function getServerIp()
{
return self::get('server-ip', 'none');
}
public static function setServerIp($value)
{
if ($value !== self::getServerIp())
Event::serverIpChanged();
self::set('server-ip', $value);
}
public static function getBootMenu()
{
return json_decode(self::get('ipxe-menu'), true);
}
public static function setBootMenu($value)
{
self::set('ipxe-menu', json_encode($value));
}
public static function getVersionCheckTaskId()
{
return self::get('versioncheck-task');
}
public static function setVersionCheckTaskId($value)
{
self::set('versioncheck-task', $value);
}
public static function getVersionCheckInformation()
{
$data = json_decode(self::get('versioncheck-data'), true);
if (isset($data['time']) && $data['time'] + 120 > time())
return $data;
$task = Taskmanager::submit('DownloadText', array(
'url' => CONFIG_REMOTE_ML . '/list.php'
));
if (!isset($task['id']))
return 'Could not start list download (' . Message::asString() . ')';
if ($task['statusCode'] !== TASK_FINISHED) {
$task = Taskmanager::waitComplete($task['id']);
}
if ($task['statusCode'] !== TASK_FINISHED || !isset($task['data']['content'])) {
return $task['data']['error'];
}
$data = json_decode($task['data']['content'], true);
$data['time'] = time();
self::setVersionCheckInformation($data);
return $data;
}
public static function setVersionCheckInformation($value)
{
self::set('versioncheck-data', json_encode($value), 1);
}
public static function getVmStoreConfig()
{
return json_decode(self::get('vmstore-config'), true);
}
public static function getVmStoreUrl()
{
$store = self::getVmStoreConfig();
if (!isset($store['storetype']))
return false;
if ($store['storetype'] === 'nfs')
return $store['nfsaddr'];
if ($store['storetype'] === 'cifs')
return $store['cifsaddr'];
if ($store['storetype'] === 'internal')
return '<local>';
return '<unknown>';
}
public static function setVmStoreConfig($value)
{
self::set('vmstore-config', json_encode($value));
}
public static function getDownloadTask($name)
{
return self::get('dl-' . $name);
}
public static function setDownloadTask($name, $taskId)
{
self::set('dl-' . $name, $taskId, 5);
}
public static function getCurrentSchemaVersion()
{
return self::get('webif-version');
}
public static function setLastWarningId($id)
{
self::set('last-warn-event-id', $id);
}
public static function getLastWarningId()
{
return self::get('last-warn-event-id', 0);
}
public static function setNeedsSetup($value)
{
self::set('needs-setup', $value);
}
public static function getNeedsSetup()
{
return self::get('needs-setup');
}
}