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| author | Marc Alexander <admin@m-a-styles.de> | 2013-09-14 14:04:48 +0200 |
|---|---|---|
| committer | Marc Alexander <admin@m-a-styles.de> | 2013-09-14 14:04:48 +0200 |
| commit | 19512b2595cef521099a95b1ab8c24dbe51c5b2f (patch) | |
| tree | bc3d575b1acfaadb63eefd11501bbab9a525b79b /phpBB/phpbb/passwords/driver/helper.php | |
| parent | b810957c4bc4ffa86dd4db4cce26bd49d7008670 (diff) | |
| download | forums-19512b2595cef521099a95b1ab8c24dbe51c5b2f.tar forums-19512b2595cef521099a95b1ab8c24dbe51c5b2f.tar.gz forums-19512b2595cef521099a95b1ab8c24dbe51c5b2f.tar.bz2 forums-19512b2595cef521099a95b1ab8c24dbe51c5b2f.tar.xz forums-19512b2595cef521099a95b1ab8c24dbe51c5b2f.zip | |
[feature/passwords] Rename "crypto" files to "passwords" files
PHPBB3-11610
Diffstat (limited to 'phpBB/phpbb/passwords/driver/helper.php')
| -rw-r--r-- | phpBB/phpbb/passwords/driver/helper.php | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/phpBB/phpbb/passwords/driver/helper.php b/phpBB/phpbb/passwords/driver/helper.php new file mode 100644 index 0000000000..dcd07263d5 --- /dev/null +++ b/phpBB/phpbb/passwords/driver/helper.php @@ -0,0 +1,143 @@ +<?php +/** +* +* @package phpBB3 +* @copyright (c) 2013 phpBB Group +* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2 +* +*/ + +/** +* @ignore +*/ +if (!defined('IN_PHPBB')) +{ + exit; +} + +/** +* @package passwords +*/ +class phpbb_passwords_driver_helper +{ + /** @var phpbb_config */ + protected $driver; + + /** + * base64 alphabet + * @var string + */ + public $itoa64 = './0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'; + + /** + * Constructor of passwords driver helper object + */ + public function __construct($driver) + { + $this->driver = $driver; + } + + /** + * 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; + global $config; + + $val = $config['rand_seed'] . microtime(); + $val = md5($val); + $config['rand_seed'] = md5($config['rand_seed'] . $val . $extra); + + if ($dss_seeded !== true && ($config['rand_seed_last_update'] < time() - rand(1,10))) + { + set_config('rand_seed_last_update', time(), true); + set_config('rand_seed', $config['rand_seed'], true); + $dss_seeded = true; + } + + return substr($val, 4, 16); + } + + /** + * Get random salt with specified length + * + * @param int $length Salt length + */ + public function get_random_salt($length) + { + $random = ''; + + if (($fh = @fopen('/dev/urandom', '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; + } +} |