1<?php
2/**
3 * @copyright Copyright (c) 2018 Robin Appelman <robin@icewind.nl>
4 *
5 * @license GNU AGPL version 3 or any later version
6 *
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU Affero General Public License for more details.
16 *
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
19 *
20 */
21
22namespace Icewind\SMB;
23
24use Icewind\SMB\Exception\Exception;
25
26/**
27 * Use existing kerberos ticket to authenticate
28 */
29class KerberosAuth implements IAuth {
30	public function getUsername(): ?string {
31		return 'dummy';
32	}
33
34	public function getWorkgroup(): ?string {
35		return 'dummy';
36	}
37
38	public function getPassword(): ?string {
39		return null;
40	}
41
42	public function getExtraCommandLineArguments(): string {
43		return '-k';
44	}
45
46	public function setExtraSmbClientOptions($smbClientState): void {
47		$success = (bool)smbclient_option_set($smbClientState, SMBCLIENT_OPT_USE_KERBEROS, true);
48		$success = $success && smbclient_option_set($smbClientState, SMBCLIENT_OPT_FALLBACK_AFTER_KERBEROS, false);
49
50		if (!$success) {
51			throw new Exception("Failed to set smbclient options for kerberos auth");
52		}
53	}
54}
55