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<?php
/**
* Provides functionality to add, update and remove
* game references based on a MySQL table.
*
* @package C4Masterserver
* @version 1.2.0-en
* @author Benedict Etzel <b.etzel@live.de>
* @license http://creativecommons.org/licenses/by/3.0/ CC-BY 3.0
*/
class C4Masterserver {
/**
* Stores the masterserver version.
*
* @var string
*/
static public $version = '1.2.0';
/**
* Stores the MySQL connection resource.
*
* @var resource
*/
private $link;
/**
* Stores the MySQL table prefix.
*
* @var string
*/
private $config;
/**
* Stores the seconds after which games timeout.
*
* @var int
*/
private $timeoutgames;
/**
* Stores the seconds after which games are removed.
*
* @var int
*/
private $deletegames;
/**
* Stores the maximum amount of games per ip.
*
* @var int
*/
private $maxgames;
/**
* The C4Masterserver constructor.
*
* @param resource $link
* @return C4Masterserver
*/
public function __construct($link, $config) {
$this->link = $link;
$this->config = $config;
$this->timeoutgames = 600;
$this->deletegames = 60 * 60 * 24;
$this->maxgames = 5;
}
/**
* Returns the C4Masterserver version.
*
* @param void
* @return string
*/
public static function getVersion() {
return(C4Masterserver::$version);
}
/**
* Sets the seconds after which games timeout.
*
* @param int $timeoutgames
* @return void
*/
public function setTimeoutgames($timeoutgames) {
$this->timeoutgames = $timeoutgames;
}
/**
* Sets the seconds after which games are removed.
*
* @param int $deletegames
* @return void
*/
public function setDeletegames($deletegames) {
$this->deletegames = $deletegames;
}
/**
* Sets the maximum amount of games per ip.
*
* @param int $maxgames
* @return void
*/
public function setMaxgames($maxgames) {
$this->maxgames = $maxgames;
}
/**
* Returns all valid references. If $show_all is true, it returns all references.
*
* @param bool $show_all
* @return array
*/
public function getReferenceArray($show_all = false) {
if (!$this->link)
return false;
$append = $show_all ? '' : 'WHERE `valid` = \'1\'';
$result = mysql_query('SELECT * FROM `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games`' . $append);
$list = array();
while ($row = mysql_fetch_assoc($result)) {
$list[$row['id']] = $row;
}
return $list;
}
/**
* Adds a new reference and returns the new CSID.
*
* @param string $reference
* @return string
*/
public function addReference($reference) {
if (!$this->link)
return false;
$reference = str_replace('0.0.0.0', $_SERVER['REMOTE_ADDR'], $reference);
$query = mysql_query('SELECT * FROM `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games` WHERE `ip` = \'' . $_SERVER['REMOTE_ADDR'] . '\' AND `valid` = \'1\'', $this->link);
if (mysql_num_rows($query) > $this->maxgames) {
return false;
}
$csid = sha1(uniqid(mt_rand(), true));
mysql_query('INSERT INTO `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games` (`id`, `ip`,`csid`, `data`, `start`, `time`, `valid`) VALUES (\'\', \'' . $_SERVER['REMOTE_ADDR'] . '\', \'' . $csid . '\', \'' . $reference . '\', \'' . time() . '\', \'' . time() . '\', \'1\')', $this->link);
return $csid;
}
/**
* Updates a reference.
*
* @param string $csid
* @param string $newreference
* @return bool
*/
public function updateReference($csid, $newreference) {
if (!$this->link)
return false;
$newreference = str_replace('0.0.0.0', $_SERVER['REMOTE_ADDR'], $newreference);
mysql_query('UPDATE `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games` SET `data`=\'' . $newreference . '\',`time` = \'' . time() . '\', `valid` = \'1\' WHERE `csid` = \'' . $csid . '\'', $this->link);
return true;
}
/**
* Removes a reference by setting it invalid.
*
* @param string $csid
* @return bool
*/
public function removeReference($csid) {
if (!$this->link)
return false;
mysql_query('UPDATE `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games` SET `time` = \'' . time() . '\', `valid` = \'0\' WHERE `csid` = \'' . $csid . '\'', $this->link);
return true;
}
/**
* Sets old references invalid and removes very old ones if $remove is true.
*
* @param void
* @return void
*/
public function cleanUp() {
if (!$this->link)
return false;
if ($this->timeoutgames != 0) {
mysql_query('UPDATE `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games` SET `valid` = \'0\' WHERE `time` < \'' . (time() - $this->timeoutgames) . '\'', $this->link);
}
if ($this->deletegames != 0) {
mysql_query('DELETE FROM `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'games` WHERE `valid` = \'0\' AND `time` < \'' . (time() - $this->deletegames) . '\'', $this->link);
}
}
public function getDownloadURL($platform) {
$result = mysql_query('SELECT `file` FROM `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'update` WHERE `old_version` = \'\' AND `platform` = \'' . $platform . '\'');
if ($result) {
$row = mysql_fetch_assoc($result);
if ($row['file'])
return ParseINI::parseValue('oc_update_url', $this->config) . $row['file'];
}
return false;
}
public function getCurrentVersion($platform) {
$result = mysql_query('SELECT `new_version` FROM `' . ParseINI::parseValue('mysql_prefix', $this->config) . 'update` WHERE `old_version` = \'\' AND `platform` = \'' . $platform . '\'');
if ($result) {
$row = mysql_fetch_assoc($result);
return $row['new_version'];
}
return false;
}
}
?>
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