<?php
/**
 * TNT OFFICIAL MODULE FOR PRESTASHOP
 *
 * @author    GFI Informatique <www.gfi.fr>
 * @copyright 2016-2017 GFI Informatique, 2016-2017 TNT
 * @license   https://opensource.org/licenses/MIT MIT License
 */

require_once _PS_MODULE_DIR_.'tntofficiel/libraries/TNTOfficiel_Debug.php';

class TNTOfficiel_PasswordManager
{
    static $salt = '0hp6df7j46df4gc6df42nfhf6i9gfdzz';

    /**
     * Encrypt password
     * @param $password
     * @return string
     */
    public static function encrypt($password)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $encryptedPwd = trim(base64_encode(mcrypt_encrypt(
            MCRYPT_RIJNDAEL_256, TNTOfficiel_PasswordManager::$salt, $password, MCRYPT_MODE_ECB,
            mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)
        )));

        return $encryptedPwd;
    }

    /**
     * Decrypt password
     * @param $password
     * @return string
     */
    public static function decrypt($password)
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $decryptedPwd = trim(mcrypt_decrypt(
            MCRYPT_RIJNDAEL_256, TNTOfficiel_PasswordManager::$salt, base64_decode($password), MCRYPT_MODE_ECB,
            mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)
        ));

        return $decryptedPwd;
    }

    /**
     * get a sha1 hash of the password
     * @return string
     */
    public static function getHash()
    {
        TNTOfficiel_Debug::log(array('msg' => '>>', 'file' => __FILE__, 'line' => __LINE__));

        $hashedPwd = sha1(TNTOfficiel_PasswordManager::decrypt(Configuration::get('TNT_CARRIER_PASSWORD')));

        return $hashedPwd;
    }

}