<?php

/**
 * Gearman Password Driver
 *
 * Payload is json string containing username, oldPassword and newPassword
 * Return value is a json string saying result: true if success.
 *
 * @version 1.0
 * @author Mohammad Anwari <mdamt@mdamt.net>
 */

class rcube_gearman_password
{
    function save($currpass, $newpass)
    {
        if (extension_loaded('gearman')) {
            $rcmail  = rcmail::get_instance();
            $user    = $_SESSION['username'];
            $payload = array(
                'username'    => $user,
                'oldPassword' => $currpass,
                'newPassword' => $newpass,
            );

            $gmc = new GearmanClient();
            $gmc->addServer($rcmail->config->get('password_gearman_host'));

            $result  = $gmc->doNormal('setPassword', json_encode($payload));
            $success = json_decode($result);

            if ($success && $success->result == 1) {
                return PASSWORD_SUCCESS;
            }
            else {
                rcube::raise_error(array(
                    'code' => 600,
                    'type' => 'php',
                    'file' => __FILE__, 'line' => __LINE__,
                    'message' => "Password plugin: Gearman authentication failed for user $user: $error"
                ), true, false);
            }
        }
        else {
            rcube::raise_error(array(
                'code' => 600,
                'type' => 'php',
                'file' => __FILE__, 'line' => __LINE__,
                'message' => "Password plugin: PECL Gearman module not loaded"
            ), true, false);
        }

        return PASSWORD_ERROR;
    }
}