<?PHP
ini_set('session.cookie_httponly', 1);
ini_set('session.use_strict_mode', 1);
if(in_array('sha512', hash_algos())) {
	ini_set('session.hash_function', 'sha512');
}
if(isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on") {
	$prot = 'https';
	ini_set('session.cookie_secure', 1);
	if(!headers_sent()) {
		header("Strict-Transport-Security: max-age=31536000; includeSubDomains; preload;");
	}
} else {
	$prot = 'http';
}
session_start();

require_once('../other/config.php');
require_once('../other/phpcommand.php');

function enter_logfile($cfg,$loglevel,$logtext,$norotate = false) {
	if($loglevel > $cfg['logs_debug_level']) return;
	$file = $cfg['logs_path'].'ranksystem.log';
	switch ($loglevel) {
		case 1: $loglevel = "  CRITICAL  "; break;
		case 2: $loglevel = "  ERROR     "; break;
		case 3: $loglevel = "  WARNING   "; break;
		case 4: $loglevel = "  NOTICE    "; break;
		case 5: $loglevel = "  INFO      "; break;
		case 6: $loglevel = "  DEBUG     "; break;
		default:$loglevel = "  NONE      ";
	}
	$loghandle = fopen($file, 'a');
	fwrite($loghandle, DateTime::createFromFormat('U.u', number_format(microtime(true), 6, '.', ''))->setTimeZone(new DateTimeZone($cfg['logs_timezone']))->format("Y-m-d H:i:s.u ").$loglevel.$logtext."\n");
	fclose($loghandle);
	if($norotate == false && filesize($file) > ($cfg['logs_rotation_size'] * 1048576)) {
		$loghandle = fopen($file, 'a');
		fwrite($loghandle, DateTime::createFromFormat('U.u', number_format(microtime(true), 6, '.', ''))->setTimeZone(new DateTimeZone($cfg['logs_timezone']))->format("Y-m-d H:i:s.u ")."  NOTICE    Logfile filesie of 5 MiB reached.. Rotate logfile.\n");
		fclose($loghandle);
		$file2 = "$file.old";
		if(file_exists($file2)) unlink($file2);
		rename($file, $file2);
		$loghandle = fopen($file, 'a');
		fwrite($loghandle, DateTime::createFromFormat('U.u', number_format(microtime(true), 6, '.', ''))->setTimeZone(new DateTimeZone($cfg['logs_timezone']))->format("Y-m-d H:i:s.u ")."  NOTICE    Rotated logfile...\n");
		fclose($loghandle);
	}
}

function getclientip() {
	if (!empty($_SERVER['HTTP_CLIENT_IP']))
		return $_SERVER['HTTP_CLIENT_IP'];
	elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR']))
		return $_SERVER['HTTP_X_FORWARDED_FOR'];
	elseif(!empty($_SERVER['HTTP_X_FORWARDED']))
		return $_SERVER['HTTP_X_FORWARDED'];
	elseif(!empty($_SERVER['HTTP_FORWARDED_FOR']))
		return $_SERVER['HTTP_FORWARDED_FOR'];
	elseif(!empty($_SERVER['HTTP_FORWARDED']))
		return $_SERVER['HTTP_FORWARDED'];
	elseif(!empty($_SERVER['REMOTE_ADDR']))
		return $_SERVER['REMOTE_ADDR'];
	else
		return false;
}

function error_handling($msg,$type = NULL) {
	switch ($type) {
		case NULL: echo '<div class="alert alert-success alert-dismissible">'; break;
		case 1: echo '<div class="alert alert-info alert-dismissible">'; break;
		case 2: echo '<div class="alert alert-warning alert-dismissible">'; break;
		case 3: echo '<div class="alert alert-danger alert-dismissible">'; break;
	}
	echo '<button type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>',$msg,'</div>';
}

if (isset($_POST['logout'])) {
	echo "logout";
	rem_session_ts3($rspathhex);
	header("Location: $prot://".$_SERVER['HTTP_HOST'].rtrim(dirname($_SERVER['PHP_SELF']), '/\\'));
	exit;
}

if (basename($_SERVER['SCRIPT_NAME']) != "index.php" && basename($_SERVER['SCRIPT_NAME']) != "resetpassword.php" && (!isset($_SESSION[$rspathhex.'username']) || $_SESSION[$rspathhex.'username'] != $cfg['webinterface_user'] || $_SESSION[$rspathhex.'password'] != $cfg['webinterface_pass'] || $_SESSION[$rspathhex.'clientip'] != getclientip())) {
	header("Location: $prot://".$_SERVER['HTTP_HOST'].rtrim(dirname($_SERVER['PHP_SELF']), '/\\'));
	exit;
}

$csrf_token = bin2hex(openssl_random_pseudo_bytes(32));
?>