<?php
/**
 * @Author: printempw
 * @Date:   2016-03-13 11:59:32
 * @Last Modified by:   printempw
 * @Last Modified time: 2016-03-27 12:32:25
 */

namespace Database;

use Database\AdaptedDatabase;

class AuthmeDatabase extends AdaptedDatabase
{
    /**
     * Default SHA256 encryption method for Authme
     *
     * @see http://pastebin.com/1wy9g2HT
     */
    public function encryptPassword($raw_passwd, $username="") {
        $salt = $this->getPwdInfo($username)['salt'];
        $hash = hash('sha256', hash('sha256', $raw_passwd).$salt);
        $encrypt = '$SHA$'.$salt.'$'. $hash;
        return $encrypt;
    }

    /**
     * Parse fucking inline salt
     *
     * @see    https://github.com/Xephi/AuthMeReloaded/blob/master/samples/website_integration/sha256/integration.php
     * @param  string $username
     * @return array
     */
    private function getPwdInfo($username) {
        $hashed = $this->query("SELECT * FROM ".$this->table_name."
            WHERE ".$this->column_uname."='$username'")->fetch_array()['password'];
        $parts = explode('$', $hashed);
        $pwd_info['password'] = $parts[3];
        $pwd_info['salt'] = $parts[2];
        return $pwd_info;
    }

}