455 lines
12 KiB
PHP

<?php
/*
*
* ____ _ _ __ __ _ __ __ ____
* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* @author PocketMine Team
* @link http://www.pocketmine.net/
*
*
*/
/**
* Various Utilities used around the code
*/
namespace pocketmine\utils;
use pocketmine\ThreadManager;
/**
* Big collection of functions
*/
class Utils{
public static $online = true;
public static $ip = false;
public static $os;
private static $serverUniqueId = null;
/**
* Generates an unique identifier to a callable
*
* @param callable $variable
*
* @return string
*/
public static function getCallableIdentifier(callable $variable){
if(is_array($variable)){
return sha1(strtolower(spl_object_hash($variable[0])) . "::" . strtolower($variable[1]));
}else{
return sha1(strtolower($variable));
}
}
/**
* Gets this machine / server instance unique ID
* Returns a hash, the first 32 characters (or 16 if raw)
* will be an identifier that won't change frequently.
* The rest of the hash will change depending on other factors.
*
* @param string $extra optional, additional data to identify the machine
*
* @return UUID
*/
public static function getMachineUniqueId($extra = ""){
if(self::$serverUniqueId !== null and $extra === ""){
return self::$serverUniqueId;
}
$machine = php_uname("a");
$machine .= file_exists("/proc/cpuinfo") ? implode(preg_grep("/(model name|Processor|Serial)/", file("/proc/cpuinfo"))) : "";
$machine .= sys_get_temp_dir();
$machine .= $extra;
$os = Utils::getOS();
if($os === "win"){
@exec("ipconfig /ALL", $mac);
$mac = implode("\n", $mac);
if(preg_match_all("#Physical Address[. ]{1,}: ([0-9A-F\\-]{17})#", $mac, $matches)){
foreach($matches[1] as $i => $v){
if($v == "00-00-00-00-00-00"){
unset($matches[1][$i]);
}
}
$machine .= implode(" ", $matches[1]); //Mac Addresses
}
}elseif($os === "linux"){
if(file_exists("/etc/machine-id")){
$machine .= file_get_contents("/etc/machine-id");
}else{
@exec("ifconfig 2>/dev/null", $mac);
$mac = implode("\n", $mac);
if(preg_match_all("#HWaddr[ \t]{1,}([0-9a-f:]{17})#", $mac, $matches)){
foreach($matches[1] as $i => $v){
if($v == "00:00:00:00:00:00"){
unset($matches[1][$i]);
}
}
$machine .= implode(" ", $matches[1]); //Mac Addresses
}
}
}elseif($os === "android"){
$machine .= @file_get_contents("/system/build.prop");
}elseif($os === "mac"){
$machine .= `system_profiler SPHardwareDataType | grep UUID`;
}
$data = $machine . PHP_MAXPATHLEN;
$data .= PHP_INT_MAX;
$data .= PHP_INT_SIZE;
$data .= get_current_user();
foreach(get_loaded_extensions() as $ext){
$data .= $ext . ":" . phpversion($ext);
}
$uuid = UUID::fromData($machine, $data);
if($extra === ""){
self::$serverUniqueId = $uuid;
}
return $uuid;
}
/**
* Gets the External IP using an external service, it is cached
*
* @param bool $force default false, force IP check even when cached
*
* @return string
*/
public static function getIP($force = false){
if(Utils::$online === false){
return false;
}elseif(Utils::$ip !== false and $force !== true){
return Utils::$ip;
}
$ip = trim(strip_tags(Utils::getURL("http://checkip.dyndns.org/")));
if(preg_match('#Current IP Address\: ([0-9a-fA-F\:\.]*)#', $ip, $matches) > 0){
Utils::$ip = $matches[1];
}else{
$ip = Utils::getURL("http://www.checkip.org/");
if(preg_match('#">([0-9a-fA-F\:\.]*)</span>#', $ip, $matches) > 0){
Utils::$ip = $matches[1];
}else{
$ip = Utils::getURL("http://checkmyip.org/");
if(preg_match('#Your IP address is ([0-9a-fA-F\:\.]*)#', $ip, $matches) > 0){
Utils::$ip = $matches[1];
}else{
$ip = trim(Utils::getURL("http://ifconfig.me/ip"));
if($ip != ""){
Utils::$ip = $ip;
}else{
return false;
}
}
}
}
return Utils::$ip;
}
/**
* Returns the current Operating System
* Windows => win
* MacOS => mac
* iOS => ios
* Android => android
* Linux => Linux
* BSD => bsd
* Other => other
*
* @return string
*/
public static function getOS($recalculate = false){
if(self::$os === null or $recalculate){
$uname = php_uname("s");
if(stripos($uname, "Darwin") !== false){
if(strpos(php_uname("m"), "iP") === 0){
self::$os = "ios";
}else{
self::$os = "mac";
}
}elseif(stripos($uname, "Win") !== false or $uname === "Msys"){
self::$os = "win";
}elseif(stripos($uname, "Linux") !== false){
if(@file_exists("/system/build.prop")){
self::$os = "android";
}else{
self::$os = "linux";
}
}elseif(stripos($uname, "BSD") !== false or $uname === "DragonFly"){
self::$os = "bsd";
}else{
self::$os = "other";
}
}
return self::$os;
}
public static function getRealMemoryUsage(){
$stack = 0;
$heap = 0;
if(Utils::getOS() === "linux" or Utils::getOS() === "android"){
$mappings = file("/proc/self/maps");
foreach($mappings as $line){
if(preg_match("#([a-z0-9]+)\\-([a-z0-9]+) [rwxp\\-]{4} [a-z0-9]+ [^\\[]*\\[([a-zA-z0-9]+)\\]#", trim($line), $matches) > 0){
if(strpos($matches[3], "heap") === 0){
$heap += hexdec($matches[2]) - hexdec($matches[1]);
}elseif(strpos($matches[3], "stack") === 0){
$stack += hexdec($matches[2]) - hexdec($matches[1]);
}
}
}
}
return [$heap, $stack];
}
public static function getMemoryUsage($advanced = false){
$reserved = memory_get_usage();
$VmSize = null;
$VmRSS = null;
if(Utils::getOS() === "linux" or Utils::getOS() === "android"){
$status = file_get_contents("/proc/self/status");
if(preg_match("/VmRSS:[ \t]+([0-9]+) kB/", $status, $matches) > 0){
$VmRSS = $matches[1] * 1024;
}
if(preg_match("/VmSize:[ \t]+([0-9]+) kB/", $status, $matches) > 0){
$VmSize = $matches[1] * 1024;
}
}
//TODO: more OS
if($VmRSS === null){
$VmRSS = memory_get_usage();
}
if(!$advanced){
return $VmRSS;
}
if($VmSize === null){
$VmSize = memory_get_usage(true);
}
return [$reserved, $VmRSS, $VmSize];
}
public static function getThreadCount(){
if(Utils::getOS() === "linux" or Utils::getOS() === "android"){
if(preg_match("/Threads:[ \t]+([0-9]+)/", file_get_contents("/proc/self/status"), $matches) > 0){
return (int) $matches[1];
}
}
//TODO: more OS
return count(ThreadManager::getInstance()->getAll()) + 3; //RakLib + MainLogger + Main Thread
}
public static function getCoreCount($recalculate = false){
static $processors = 0;
if($processors > 0 and !$recalculate){
return $processors;
}else{
$processors = 0;
}
switch(Utils::getOS()){
case "linux":
case "android":
if(file_exists("/proc/cpuinfo")){
foreach(file("/proc/cpuinfo") as $l){
if(preg_match('/^processor[ \t]*:[ \t]*[0-9]+$/m', $l) > 0){
++$processors;
}
}
}else{
if(preg_match("/^([0-9]+)\\-([0-9]+)$/", trim(@file_get_contents("/sys/devices/system/cpu/present")), $matches) > 0){
$processors = (int) ($matches[2] - $matches[1]);
}
}
break;
case "bsd":
case "mac":
$processors = (int) `sysctl -n hw.ncpu`;
$processors = (int) `sysctl -n hw.ncpu`;
break;
case "win":
$processors = (int) getenv("NUMBER_OF_PROCESSORS");
break;
}
return $processors;
}
/**
* Returns a prettified hexdump
*
* @param string $bin
*
* @return string
*/
public static function hexdump($bin){
$output = "";
$bin = str_split($bin, 16);
foreach($bin as $counter => $line){
$hex = chunk_split(chunk_split(str_pad(bin2hex($line), 32, " ", STR_PAD_RIGHT), 2, " "), 24, " ");
$ascii = preg_replace('#([^\x20-\x7E])#', ".", $line);
$output .= str_pad(dechex($counter << 4), 4, "0", STR_PAD_LEFT) . " " . $hex . " " . $ascii . PHP_EOL;
}
return $output;
}
/**
* Returns a string that can be printed, replaces non-printable characters
*
* @param $str
*
* @return string
*/
public static function printable($str){
if(!is_string($str)){
return gettype($str);
}
return preg_replace('#([^\x20-\x7E])#', '.', $str);
}
/**
* This function tries to get all the entropy available in PHP, and distills it to get a good RNG.
*
* This function simply forwards to the PHP random_bytes function.
*
* @param int $length default 16, Number of bytes to generate
* @param bool $secure default true, Generate secure distilled bytes, slower
* @param bool $raw default true, returns a binary string if true, or an hexadecimal one
* @param string $startEntropy default null, adds more initial entropy
* @param int &$rounds Will be set to the number of rounds taken
* @param int &$drop Will be set to the amount of dropped bytes
*
* @deprecated prefer PHP 7 random_bytes()
* @return string
*/
public static function getRandomBytes($length = 16, $secure = true, $raw = true, $startEntropy = "", &$rounds = 0, &$drop = 0){
$raw_output = random_bytes($length);
if($raw){
return $raw_output;
}else{
return bin2hex($raw_output);
}
}
/*
public static function angle3D($pos1, $pos2){
$X = $pos1["x"] - $pos2["x"];
$Z = $pos1["z"] - $pos2["z"];
$dXZ = sqrt(pow($X, 2) + pow($Z, 2));
$Y = $pos1["y"] - $pos2["y"];
$hAngle = rad2deg(atan2($Z, $X) - M_PI_2);
$vAngle = rad2deg(-atan2($Y, $dXZ));
return array("yaw" => $hAngle, "pitch" => $vAngle);
}*/
/**
* GETs an URL using cURL
*
* @param $page
* @param int $timeout default 10
* @param array $extraHeaders
*
* @return bool|mixed
*/
public static function getURL($page, $timeout = 10, array $extraHeaders = []){
if(Utils::$online === false){
return false;
}
$ch = curl_init($page);
curl_setopt($ch, CURLOPT_HTTPHEADER, array_merge(["User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0 PocketMine-MP"], $extraHeaders));
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, (int) $timeout);
curl_setopt($ch, CURLOPT_TIMEOUT, (int) $timeout);
$ret = curl_exec($ch);
curl_close($ch);
return $ret;
}
/**
* POSTs data to an URL
*
* @param $page
* @param array|string $args
* @param int $timeout
* @param array $extraHeaders
*
* @return bool|mixed
*/
public static function postURL($page, $args, $timeout = 10, array $extraHeaders = []){
if(Utils::$online === false){
return false;
}
$ch = curl_init($page);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_FORBID_REUSE, 1);
curl_setopt($ch, CURLOPT_FRESH_CONNECT, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
curl_setopt($ch, CURLOPT_AUTOREFERER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array_merge(["User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20100101 Firefox/12.0 PocketMine-MP"], $extraHeaders));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, (int) $timeout);
curl_setopt($ch, CURLOPT_TIMEOUT, (int) $timeout);
$ret = curl_exec($ch);
curl_close($ch);
return $ret;
}
public static function javaStringHash($string){
$hash = 0;
for($i = 0; $i < strlen($string); $i++){
$ord = ord($string{$i});
if($ord & 0x80){
$ord -= 0x100;
}
$hash = 31 * $hash + $ord;
while($hash > 0x7FFFFFFF){
$hash -= 0x100000000;
}
while($hash < -0x80000000){
$hash += 0x100000000;
}
$hash &= 0xFFFFFFFF;
}
return $hash;
}
}