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View File Name : Smb.php

<?php
/**
 * Copyright 1999-2017 Horde LLC (http://www.horde.org/)
 *
 * See the enclosed file COPYING for license information (LGPL). If you did
 * not receive this file, see http://www.horde.org/licenses/lgpl21.
 *
 * @author   Jon Parise <jon@horde.org>
 * @author   Marcus I. Ryan <marcus@riboflavin.net>
 * @category Horde
 * @license  http://www.horde.org/licenses/lgpl21 LGPL-2.1
 * @package  Auth
 * @todo     Add driver for other smbclient extensions https://github.com/eduardok/libsmbclient-php http://pecl.php.net/package/smbclient
 */

/**
 * The Horde_Auth_Smb class provides a SMB implementation of the Horde
 * authentication system.
 *
 * This module requires the smbauth extension for PHP:
 *   http://tekrat.com/wp/smbauth/
 *
 * At the time of this writing, the extension, and thus this module, only
 * supported authentication against a domain, and pdc and bdc must be non-null
 * and not equal to each other. In other words, to use this module you must
 * have a domain with at least one PDC and one BDC.
 *
 * @author    Jon Parise <jon@horde.org>
 * @author    Marcus I. Ryan <marcus@riboflavin.net>
 * @category  Horde
 * @copyright 1999-2017 Horde LLC
 * @license   http://www.horde.org/licenses/lgpl21 LGPL-2.1
 * @package   Auth
 */
class Horde_Auth_Smb extends Horde_Auth_Base
{
    /**
     * Constructor.
     *
     * @param array $params  Parameters:
     * <pre>
     * 'domain' - (string) [REQUIRED] The domain name to authenticate with.
     * 'group' - Group name that the user must be a member of.
     *           DEFAULT: none
     * 'hostspec' - (string) [REQUIRED] IP, DNS Name, or NetBios name of the
     *              SMB server to authenticate with.
     * </pre>
     *
     * @throws Horde_Auth_Exception
     * @throws InvalidArgumentException
     */
    public function __construct(array $params = array())
    {
        if (!Horde_Util::extensionExists('smbauth')) {
            throw new Horde_Auth_Exception(__CLASS__ . ': Required smbauth extension not found.');
        }

        foreach (array('domain', 'hostspec') as $val) {
            if (empty($params[$val])) {
                throw new InvalidArgumentException('Missing ' . $val . ' parameter.');
            }
        }

        $params = array_merge(array(
            'group' => null
        ), $params);

        parent::__construct($params);
    }

    /**
     * Find out if the given set of login credentials are valid.
     *
     * @param string $userId      The userId to check.
     * @param array $credentials  An array of login credentials.
     *
     * @throws Horde_Auth_Exception
     */
    public function _authenticate($userId, $credentials)
    {
        if (empty($credentials['password'])) {
            throw new Horde_Auth_Exception('', Horde_Auth::REASON_BADLOGIN);
        }

        /* Authenticate. */
        $rval = validate($this->_params['hostspec'],
                         $this->_params['domain'],
                         empty($this->_params['group']) ? '' : $this->_params['group'],
                         $userId,
                         $credentials['password']);

        if ($rval === 1) {
            throw new Horde_Auth_Exception('Failed to connect to SMB server.');
        } elseif ($rval !== 0) {
            throw new Horde_Auth_Exception(err2str());
        }
    }

}