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<?php
/**
 * XMail Password Driver
 *
 * Driver for XMail password
 *
 * @version 2.0
 * @author Helio Cavichiolo Jr <helio@hcsistemas.com.br>
 *
 * Setup xmail_host, xmail_user, xmail_pass and xmail_port into
 * config.inc.php of password plugin as follows:
 *
 * $config['xmail_host'] = 'localhost';
 * $config['xmail_user'] = 'YourXmailControlUser';
 * $config['xmail_pass'] = 'YourXmailControlPass';
 * $config['xmail_port'] = 6017;
 *
 * Copyright (C) The Roundcube Dev Team
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see http://www.gnu.org/licenses/.
 */

class rcube_xmail_password
{
    function save($currpass, $newpass)
    {
        $rcmail = rcmail::get_instance();
        list($user, $domain) = explode('@', $_SESSION['username']);

$xmail = new XMail;

$xmail->hostname = $rcmail->config->get('xmail_host');
        $xmail->username = $rcmail->config->get('xmail_user');
        $xmail->password = $rcmail->config->get('xmail_pass');
        $xmail->port     = $rcmail->config->get('xmail_port');

if (!$xmail->connect()) {
            rcube::raise_error([
                    'code' => 600,
                    'file' => __FILE__,
                    'line' => __LINE__,
                    'message' => "Password plugin: Unable to connect to mail server"
                ], true, false
            );

return PASSWORD_CONNECT_ERROR;
        }

if (!$xmail->send("userpasswd\t".$domain."\t".$user."\t".$newpass."\n")) {
            $xmail->close();
            rcube::raise_error([
                    'code' => 600,
                    'file' => __FILE__,
                    'line' => __LINE__,
                    'message' => "Password plugin: Unable to change password"
                ], true, false
            );

return PASSWORD_ERROR;
        }

$xmail->close();
        return PASSWORD_SUCCESS;
    }
}

class XMail {
    var $socket;
    var $hostname = 'localhost';
    var $username = 'xmail';
    var $password = '';
    var $port = 6017;

function send($msg)
    {
        socket_write($this->socket,$msg);
        if (substr(socket_read($this->socket, 512, PHP_BINARY_READ),0,1) != "+") {
            return false;
        }
        return true;
    }

function connect()
    {
        $this->socket = socket_create(AF_INET, SOCK_STREAM, 0);
        if ($this->socket < 0)
            return false;

$result = socket_connect($this->socket, $this->hostname, $this->port);
        if ($result < 0) {
            socket_close($this->socket);
            return false;
        }

if (substr(socket_read($this->socket, 512, PHP_BINARY_READ),0,1) != "+") {
            socket_close($this->socket);
            return false;
        }

if (!$this->send("$this->username\t$this->password\n")) {
            socket_close($this->socket);
            return false;
        }
        return true;
    }

function close()
    {
        $this->send("quit\n");
        socket_close($this->socket);
    }
}

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