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Shoghi Cervantes Pueyo
314
classes/Utils.class.php
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314
classes/Utils.class.php
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<?php
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/*
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-
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/ \
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/ \
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/ POCKET \
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/ MINECRAFT PHP \
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|\ @shoghicp /|
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|. \ / .|
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| .. \ / .. |
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| .. | .. |
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| .. | .. |
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\ | /
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\ | /
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\ | /
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\ | /
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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*/
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if(!defined("GMPEXT")){
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@define("GMPEXT", false);
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}
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if(!defined("HEX2BIN")){
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@define("HEX2BIN", false);
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}
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define("BIG_ENDIAN", 0x00);
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define("LITTLE_ENDIAN", 0x01);
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define("ENDIANNESS", (pack('d', 1) === "\77\360\0\0\0\0\0\0" ? BIG_ENDIAN:LITTLE_ENDIAN));
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console("[DEBUG] Endianness: ".(ENDIANNESS === LITTLE_ENDIAN ? "Little Endian":"Big Endian"), true, true, 2);
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class Utils{
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public static $hexToBin = array(
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"0" => "0000",
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"1" => "0001",
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"2" => "0010",
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"3" => "0011",
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"4" => "0100",
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"5" => "0101",
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"6" => "0110",
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"7" => "0111",
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"8" => "1000",
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"9" => "1001",
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"a" => "1010",
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"b" => "1011",
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"c" => "1100",
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"d" => "1101",
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"e" => "1110",
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"f" => "1111",
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);
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public static function round($number){
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return round($number, 0, PHP_ROUND_HALF_DOWN);
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}
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public static function generateKey($startEntropy = ""){
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//not much entropy, but works ^^
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$entropy = array(
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implode(stat(__FILE__)),
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lcg_value(),
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print_r($_SERVER, true),
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implode(mt_rand(0,394),get_defined_constants()),
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get_current_user(),
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print_r(ini_get_all(),true),
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(string) memory_get_usage(),
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php_uname(),
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phpversion(),
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zend_version(),
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getmypid(),
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mt_rand(),
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rand(),
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implode(get_loaded_extensions()),
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sys_get_temp_dir(),
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disk_free_space("."),
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disk_total_space("."),
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(function_exists("openssl_random_pseudo_bytes") and version_compare(PHP_VERSION, "5.3.4", ">=")) ? openssl_random_pseudo_bytes(16):microtime(true),
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function_exists("mcrypt_create_iv") ? mcrypt_create_iv(16, MCRYPT_DEV_URANDOM):microtime(true),
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uniqid(microtime(true),true),
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file_exists("/dev/urandom") ? fread(fopen("/dev/urandom", "rb"),16):microtime(true),
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);
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shuffle($entropy);
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$value = Utils::hexToStr(md5((string) $startEntropy));
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unset($startEntropy);
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foreach($entropy as $c){
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$c = (string) $c;
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for($i = 0; $i < 4; ++$i){
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$value ^= md5($i . $c . microtime(true), true);
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$value ^= substr(sha1($i . $c . microtime(true), true),$i,16);
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}
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}
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return $value;
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}
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public static function sha1($input){
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$binary = Utils::hexToBin(sha1($input));
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$negative = false;
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$len = strlen($binary);
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if($binary{0} === "1"){
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$negative = true;
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for($i = 0; $i < $len; ++$i){
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$binary{$i} = $binary{$i} === "1" ? "0":"1";
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}
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for($i = $len - 1; $i >= 0; --$i){
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if($binary{$i} === "1"){
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$binary{$i} = "0";
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}else{
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$binary{$i} = "1";
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break;
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}
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}
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}
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$hash = Utils::binToHex($binary);
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$len = strlen($hash);
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for($i = 0; $i < $len; ++$i){
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if($hash{$i} === "0"){
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$hash{$i} = "x";
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}else{
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break;
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}
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}
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return ($negative === true ? "-":"").str_replace("x", "", $hash);
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}
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public static function microtime(){
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return microtime(true);
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}
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public static function curl_get($page){
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$ch = curl_init($page);
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curl_setopt($ch, CURLOPT_HTTPHEADER, array('User-Agent: Minecraft PHP Client 2'));
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curl_setopt($ch, CURLOPT_AUTOREFERER, true);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
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$ret = curl_exec($ch);
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curl_close($ch);
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return $ret;
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}
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public static function curl_post($page, $args, $timeout = 10){
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$ch = curl_init($page);
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curl_setopt($ch, CURLOPT_POST, 1);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
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curl_setopt($ch, CURLOPT_AUTOREFERER, true);
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
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curl_setopt($ch, CURLOPT_HTTPHEADER, array('User-Agent: Minecraft PHP Client 2'));
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, (int) $timeout);
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$ret = curl_exec($ch);
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curl_close($ch);
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return $ret;
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}
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public static function strToBin($str){
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return Utils::hexToBin(Utils::strToHex($str));
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}
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public static function hexToBin($hex){
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$bin = "";
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$len = strlen($hex);
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for($i = 0; $i < $len; ++$i){
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$bin .= Utils::$hexToBin[$hex{$i}];
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}
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return $bin;
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}
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public static function binToStr($bin){
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$len = strlen($bin);
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if(($len % 8) != 0){
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$bin = substr($bin, 0, -($len % 8));
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}
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$str = "";
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for($i = 0; $i < $len; $i += 8){
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$str .= chr(bindec(substr($bin, $i, 8)));
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}
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return $str;
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}
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public static function binToHex($bin){
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$len = strlen($bin);
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if(($len % 8) != 0){
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$bin = substr($bin, 0, -($len % 8));
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}
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$hex = "";
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for($i = 0; $i < $len; $i += 4){
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$hex .= dechex(bindec(substr($bin, $i, 4)));
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}
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return $hex;
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}
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public static function strToHex($str){
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return bin2hex($str);
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}
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public static function hexToStr($hex){
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if(HEX2BIN === true){
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return hex2bin($hex);
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}
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return pack("H*" , $hex);
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}
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public static function readString($str){
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return preg_replace('/\x00(.)/s', '$1', $str);
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}
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public static function writeString($str){
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return preg_replace('/(.)/s', "\x00$1", $str);
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}
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public static function readBool($b){
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return Utils::readByte($b, false) === 0 ? false:true;
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}
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public static function writeBool($b){
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return Utils::writeByte($b === true ? 1:0);
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}
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public static function readByte($c, $signed = true){
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$b = ord($c{0});
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if($signed === true and ($b & 0x80) === 0x80){ //calculate Two's complement
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$b = -0x80 + ($b & 0x7f);
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}
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return $b;
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}
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public static function writeByte($c){
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if($c > 0xff){
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return false;
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}
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if($c < 0 and $c >= -0x80){
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$c = 0xff + $c + 1;
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}
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return chr($c);
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}
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public static function readShort($str, $signed = true){
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list(,$unpacked) = unpack("n", $str);
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if($unpacked > 0x7fff and $signed === true){
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$unpacked -= 0x10000; // Convert unsigned short to signed short
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}
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return $unpacked;
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}
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public static function writeShort($value){
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if($value < 0){
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$value += 0x10000;
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}
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return pack("n", $value);
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}
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public static function readInt($str){
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list(,$unpacked) = unpack("N", $str);
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return (int) $unpacked;
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}
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public static function writeInt($value){
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if($value < 0){
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$value += 0x100000000;
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}
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return pack("N", $value);
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}
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public static function readFloat($str){
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list(,$value) = ENDIANNESS === BIG_ENDIAN?unpack('f', $str):unpack('f', strrev($str));
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return $value;
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}
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public static function writeFloat($value){
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return ENDIANNESS === BIG_ENDIAN?pack('f', $value):strrev(pack('f', $value));
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}
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public static function readDouble($str){
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list(,$value) = ENDIANNESS === BIG_ENDIAN?unpack('d', $str):unpack('d', strrev($str));
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return $value;
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}
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public static function writeDouble($value){
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return ENDIANNESS === BIG_ENDIAN?pack('d', $value):strrev(pack('d', $value));
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}
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public static function readLong($str){
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list(,$firstHalf,$secondHalf) = unpack("N*", $str);
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if(GMPEXT === true){
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$value = gmp_add($secondHalf, gmp_mul($firstHalf, "0x100000000"));
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if(gmp_cmp($value, "0x8000000000000000") >= 0){
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$value = gmp_sub($value, "0x10000000000000000");
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}
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return gmp_strval($value);
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}else{
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$value = bcadd($secondHalf, bcmul($firstHalf, "4294967296"));
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if(bccomp($value, "9223372036854775808") >= 0){
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$value = bcsub($value, "18446744073709551616");
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}
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return $value;
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}
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}
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public static function writeLong($value){
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return ENDIANNESS === BIG_ENDIAN?pack('d', $value):strrev(pack('d', $value));
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}
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}
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