0x1949 Team - FAZEMRX - MANAGER
Edit File: helper.php
<?php /** * * This file is part of the phpBB Forum Software package. * * @copyright (c) phpBB Limited <https://www.phpbb.com> * @license GNU General Public License, version 2 (GPL-2.0) * * For full copyright and license information, please see * the docs/CREDITS.txt file. * */ namespace phpbb\passwords\driver; class helper { /** * @var \phpbb\config\config */ protected $config; /** * base64 alphabet * @var string */ public $itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'; /** * Construct a driver helper object * * @param \phpbb\config\config $config phpBB configuration */ public function __construct(\phpbb\config\config $config) { $this->config = $config; } /** * Base64 encode hash * * @param string $input Input string * @param int $count Input string length * * @return string base64 encoded string */ public function hash_encode64($input, $count) { $output = ''; $i = 0; do { $value = ord($input[$i++]); $output .= $this->itoa64[$value & 0x3f]; if ($i < $count) { $value |= ord($input[$i]) << 8; } $output .= $this->itoa64[($value >> 6) & 0x3f]; if ($i++ >= $count) { break; } if ($i < $count) { $value |= ord($input[$i]) << 16; } $output .= $this->itoa64[($value >> 12) & 0x3f]; if ($i++ >= $count) { break; } $output .= $this->itoa64[($value >> 18) & 0x3f]; } while ($i < $count); return $output; } /** * Return unique id * * @param string $extra Additional entropy * * @return string Unique id */ public function unique_id($extra = 'c') { static $dss_seeded = false; $val = $this->config['rand_seed'] . microtime(); $val = md5($val); $this->config['rand_seed'] = md5($this->config['rand_seed'] . $val . $extra); if ($dss_seeded !== true && ($this->config['rand_seed_last_update'] < time() - rand(1,10))) { $this->config->set('rand_seed_last_update', time(), true); $this->config->set('rand_seed', $this->config['rand_seed'], true); $dss_seeded = true; } return substr($val, 4, 16); } /** * Get random salt with specified length * * @param int $length Salt length * @param string $rand_seed Seed for random data (optional). For tests. * * @return string Random salt with specified length */ public function get_random_salt($length, $rand_seed = '/dev/urandom') { $random = ''; if (($fh = @fopen($rand_seed, 'rb'))) { $random = fread($fh, $length); fclose($fh); } if (strlen($random) < $length) { $random = ''; $random_state = $this->unique_id(); for ($i = 0; $i < $length; $i += 16) { $random_state = md5($this->unique_id() . $random_state); $random .= pack('H*', md5($random_state)); } $random = substr($random, 0, $length); } return $random; } /** * Compare two strings byte by byte * * @param string $string_a The first string * @param string $string_b The second string * * @return bool True if strings are the same, false if not */ public function string_compare($string_a, $string_b) { // Return if input variables are not strings or if length does not match if (!is_string($string_a) || !is_string($string_b) || strlen($string_a) != strlen($string_b)) { return false; } // Use hash_equals() if it's available if (function_exists('hash_equals')) { return hash_equals($string_a, $string_b); } $difference = 0; for ($i = 0; $i < strlen($string_a) && $i < strlen($string_b); $i++) { $difference |= ord($string_a[$i]) ^ ord($string_b[$i]); } return $difference === 0; } }