<?php
/**
 * This file is a part of the phpMussel package.
 * Homepage: https://phpmussel.github.io/
 *
 * PHPMUSSEL COPYRIGHT 2013 AND BEYOND BY THE PHPMUSSEL TEAM.
 *
 * Authors:
 * @see PEOPLE.md
 *
 * License: GNU/GPLv2
 * @see LICENSE.txt
 *
 * This file: Polyfills for PHP 5.4.X (last modified: 2017.10.26).
 */

if (!defined('PASSWORD_BCRYPT')) {
    define('PASSWORD_BCRYPT', 1);
}

if (!defined('PASSWORD_DEFAULT')) {
    define('PASSWORD_DEFAULT', PASSWORD_BCRYPT);
}

if (!function_exists('password_hash')) {
    function password_hash($Password, $Algo, array $Options = []) {

        $Cost = empty($Options['cost']) ? 10 : (int)$Options['cost'];

        if (empty($Options['salt'])) {

            if ($Algo === 1) {
                $CostLen = strlen($Cost);
                if ($Cost < 4) {
                    $Cost = 4;
                }
                if ($Cost > 31 || $CostLen > 2) {
                    $Cost = 31;
                } elseif ($CostLen < 2) {
                    $Cost = '0' . $Cost;
                }
                $Salt = '$2y$' . $Cost . '$';
                $Length = 22;
                $Range = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
                while ($Length--) {
                    $Salt .= str_shuffle($Range)[0];
                }
            }

            else {
                $Salt = '';
            }

        } else {
            $Salt = (string)$Options['salt'];
        }

        return crypt($Password, $Salt);

    }
}

if (!function_exists('password_verify')) {
    function password_verify($Password, $Hash) {
        return (!empty($Password) && !empty($Hash) && $Hash === crypt($Password, $Hash));
    }
}