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<?php
/**
* C4Masterserver engine backend
*
* @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
*/
//error_reporting(E_ALL); //suppress errors
require_once('include/C4Masterserver.php');
require_once('include/C4Network.php');
require_once('include/FloodProtection.php');
require_once('include/ParseINI.php');
$C4HostTestIncludeMode = true;
require_once('include/C4HostTest.php');
$config = file_get_contents('include/config.ini');
$link = mysql_connect(
ParseINI::parseValue('mysql_host', $config),
ParseINI::parseValue('mysql_user', $config),
ParseINI::parseValue('mysql_password', $config)); //connect to MySQL
$db = mysql_selectdb(ParseINI::parseValue('mysql_db', $config), $link); //select the database
header('Content-Type: text/plain'); //output as plain text
if ($link && $db) {
$prefix = ParseINI::parseValue('mysql_prefix', $config);
$server = new C4Masterserver($link, $config);
$server->setTimeoutgames(intval(ParseINI::parseValue('c4ms_timeoutgames', $config)));
$server->setDeletegames(intval(ParseINI::parseValue('c4ms_deletegames', $config)));
$server->setMaxgames(intval(ParseINI::parseValue('c4ms_maxgames', $config)));
$protect = new FloodProtection($link, $prefix);
$protect->setMaxflood(intval(ParseINI::parseValue('flood_maxrequests', $config)));
if ($protect->checkRequest($_SERVER['REMOTE_ADDR'])) { //flood protection
C4Network::sendAnswer(C4Network::createError('Flood protection.'));
die();
}
$server->cleanUp(true); //Cleanup old stuff
if (isset($_REQUEST['action']) && $_REQUEST['action'] == 'release-file') {
try {
registerRelease();
} catch(Exception $e) {
C4Network::sendAnswer(C4Network::createError($e->getMessage()));
}
} else if (isset($GLOBALS['HTTP_RAW_POST_DATA'])) { //data sent from engine?
$input = $GLOBALS['HTTP_RAW_POST_DATA'];
$action = ParseINI::parseValue('Action', $input);
$csid = ParseINI::parseValue('CSID', $input);
$csid = mysql_real_escape_string($csid, $link);
$reference = mysql_real_escape_string(strstr($input, '[Reference]'), $link);
$engine_string = ParseINI::parseValue('c4ms_engine', $config);
if (empty($engine_string) || ParseINI::parseValue('Game', $input) == $engine_string) {
switch ($action) {
case 'Start': //start a new round
if (ParseINI::parseValue('LeagueAddress', $reference)) {
C4Network::sendAnswer(C4Network::createError('League not supported!'));
} else {
$csid = $server->addReference($reference);
if ($csid) {
$answer = array('Status' => 'Success', 'CSID' => $csid);
if(!testHostConn($input))
$answer['Message'] = 'Your network failed to pass certain tests. It is unlikely that are you able to host for the public.|To fix that, you need port forwarding in your router.';
C4Network::sendAnswer(C4Network::createAnswer($answer));
unset($answer);
} else {
C4Network::sendAnswer(C4Network::createError('Round signup failed. (To many tries?)'));
}
}
break;
case 'Update': //update an existing round
if ($server->updateReference($csid, $reference)) {
C4Network::sendAnswer(C4Network::createAnswer(array('Status' => 'Success')));
} else {
C4Network::sendAnswer(C4Network::createError('Round update failed.'));
}
break;
case 'End': //remove a round
if ($server->removeReference($csid)) {
C4Network::sendAnswer(C4Network::createAnswer(array('Status' => 'Success')));
} else {
C4Network::sendAnswer(C4Network::createError('Round end failed.'));
}
break;
default:
if (!empty($action)) {
C4Network::sendAnswer(C4Network::createError('Unknown action.'));
} else {
C4Network::sendAnswer(C4Network::createError('No action defined.'));
}
break;
}
} else {
C4Network::sendAnswer(C4Network::createError('Wrong engine, "' . ParseINI::parseValue('Game', $input) . '" expected.'));
}
} else { //list availabe games
$list = array();
if (!isset($_GET['action']) || (isset($_GET['action']) && $_GET['action'] != 'version')) {
$list = $server->getReferenceArray(false);
}
$message = '';
$engine = ParseINI::parseValue('c4ms_title_engine', $config);
$platform = isset($_REQUEST['platform']) ? mysql_real_escape_string($_REQUEST['platform'], $link) : 0;
$client_version = isset($_REQUEST['version']) ? mysql_real_escape_string($_REQUEST['version'], $link) : 0;
if (!empty($engine)) {
$message .= '[' . $engine . ']' . PHP_EOL;
if (ParseINI::parseValue('oc_enable_update', $config) == 1) {
if ($platform && $client_version) {
$result = mysql_query('SELECT `new_version` FROM `' . ParseINI::parseValue('mysql_prefix', $config) . 'update` WHERE `old_version` = \'\' AND `platform` = \'' . $platform . '\'');
$row = mysql_fetch_assoc($result);
$version = $row['new_version'];
if ($version) {
$message .= 'Version=' . $version . PHP_EOL;
// strip build version from client request
$n = 0;
for($i=0;$i<strlen($client_version);$i++){
if($client_version[$i]=='.'){
$n++;
if($n>=3){
break;
}
}
}
$client_version = substr($client_version,0,$i);
if (version_compare($client_version, $version) < 0) { //We need to update
$result = mysql_query('SELECT `file` FROM `' . $prefix . 'update` WHERE `old_version` = \'' . $client_version . '\' AND `platform` = \'' . $platform . '\'');
$row = mysql_fetch_assoc($result);
if ($row['file'])
$message .= 'UpdateURL=' . ParseINI::parseValue('oc_update_url', $config) . $row['file'] . PHP_EOL;
}
}
}
}
$motd = ParseINI::parseValue('c4ms_motd', $config);
if (!empty($motd))
$message .= 'MOTD=' . $motd . PHP_EOL;
}
foreach ($list as $reference) {
if (!empty($message))
$message .= PHP_EOL;
$message .= $reference['data'];
$message .= 'GameId=' . $reference['id'] . PHP_EOL;
$message .= 'OfficialServer=false' . PHP_EOL;
}
C4Network::sendAnswer($message);
}
mysql_close($link);
}
else {
C4Network::sendAnswer(C4Network::createError('Database error.'));
}
function registerRelease()
{
global $config, $link, $prefix;
// check request validity
if (ParseINI::parseValue('oc_enable_update', $config) != 1)
throw new Exception('Update disabled on this server.');
// mandatory parameters
if (!isset($_REQUEST['file']))
throw new Exception('Missing mandatory parameter "file"');
if (!isset($_REQUEST['hash']))
throw new Exception('Missing mandatory parameter "hash"');
if (!isset($_REQUEST['new_version']))
throw new Exception('Missing mandatory parameter "new_version"');
if (!isset($_REQUEST['platform']))
throw new Exception('Missing mandatory parameter "platform"');
if (!isset($_REQUEST['hash']))
throw new Exception('Missing mandatory parameter "hash"');
// authorization
$absolutefile = ParseINI::parseValue('oc_update_path', $config) . $_REQUEST['file'];
if (!file_exists($absolutefile))
throw new Exception('Specified file "'.$absolutefile.'" not found.');
$filehash = hash_hmac_file('sha256', $absolutefile, ParseINI::parseValue('oc_update_secret', $config));
if ($filehash != $_REQUEST['hash'])
throw new Exception('Authorization failure: Hash incorrect.');
// checks done, now update DB
$old_version = array();
if (isset($_REQUEST['old_version']) && !empty($_REQUEST['old_version']))
$old_version = explode(',', mysql_real_escape_string($_REQUEST['old_version'], $link));
$delete_old_files = false;
if (isset($_REQUEST['delete_old_files']) && $_REQUEST['delete_old_files'] == 'yes')
$delete_old_files = true;
$new_version = mysql_real_escape_string($_REQUEST['new_version'], $link);
$platform = mysql_real_escape_string($_REQUEST['platform'], $link);
$file = mysql_real_escape_string($_REQUEST['file'], $link);
if (!empty($old_version)) {
if ($delete_old_files) {
$result = mysql_query('SELECT `file` FROM `' . $prefix . 'update` WHERE `new_version` != \'' . $new_version . '\' AND `old_version` != \'\' AND `platform` = \'' . $platform . '\'');
while (($row = mysql_fetch_assoc($result)) != false) {
unlink(ParseINI::parseValue('oc_update_path', $config) . $row['file']);
}
}
mysql_query('DELETE FROM `' . $prefix . 'update` WHERE `new_version` != \'' . $new_version . '\' AND `old_version` != \'\' AND `platform` = \'' . $platform . '\'');
foreach ($old_version as $version) {
mysql_query('INSERT INTO `' . $prefix . 'update` (`old_version`, `new_version`, `platform`, `file`) VALUES (\'' . $version . '\', \'' . $new_version . '\', \'' . $platform . '\', \'' . $file . '\')');
}
} else {
if ($delete_old_files) {
$row = mysql_fetch_assoc(mysql_query('SELECT `file` FROM `' . $prefix . 'update` WHERE `old_version` = \'\' AND `platform` = \'' . $platform . '\''));
unlink(ParseINI::parseValue('oc_update_path', $config) . $row['file']);
}
mysql_query('DELETE FROM `' . $prefix . 'update` WHERE `old_version` = \'\' AND `platform` = \'' . $platform . '\'');
mysql_query('INSERT INTO `' . $prefix . 'update` (`old_version`, `new_version`, `platform`, `file`) VALUES (\'\', \'' . $new_version . '\', \'' . $platform . '\', \'' . $file . '\')');
}
}
?>
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