|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* @author Christoph Wurst <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* Nextcloud - Two-factor Gateway |
|
9
|
|
|
* |
|
10
|
|
|
* This code is free software: you can redistribute it and/or modify |
|
11
|
|
|
* it under the terms of the GNU Affero General Public License, version 3, |
|
12
|
|
|
* as published by the Free Software Foundation. |
|
13
|
|
|
* |
|
14
|
|
|
* This program is distributed in the hope that it will be useful, |
|
15
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
16
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
17
|
|
|
* GNU Affero General Public License for more details. |
|
18
|
|
|
* |
|
19
|
|
|
* You should have received a copy of the GNU Affero General Public License, version 3, |
|
20
|
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/> |
|
21
|
|
|
* |
|
22
|
|
|
*/ |
|
23
|
|
|
|
|
24
|
|
|
namespace OCA\TwoFactorGateway\Provider; |
|
25
|
|
|
|
|
26
|
|
|
use OCA\TwoFactorGateway\Service\Gateway\IGateway; |
|
27
|
|
|
use OCA\TwoFactorGateway\Service\StateStorage; |
|
28
|
|
|
use OCP\Authentication\TwoFactorAuth\IProvider; |
|
29
|
|
|
use OCP\IL10N; |
|
30
|
|
|
use OCP\ISession; |
|
31
|
|
|
use OCP\IUser; |
|
32
|
|
|
use OCP\Security\ISecureRandom; |
|
33
|
|
|
use OCP\Template; |
|
34
|
|
|
|
|
35
|
|
|
abstract class AProvider implements IProvider { |
|
36
|
|
|
|
|
37
|
|
|
const STATE_DISABLED = 0; |
|
38
|
|
|
const STATE_START_VERIFICATION = 1; |
|
39
|
|
|
const STATE_VERIFYING = 2; |
|
40
|
|
|
const STATE_ENABLED = 3; |
|
41
|
|
|
|
|
42
|
|
|
/** @var string */ |
|
43
|
|
|
protected $gatewayId; |
|
44
|
|
|
|
|
45
|
|
|
/** @var IGateway */ |
|
46
|
|
|
protected $gateway; |
|
47
|
|
|
|
|
48
|
|
|
/** @var StateStorage */ |
|
49
|
|
|
protected $stateStorage; |
|
50
|
|
|
|
|
51
|
|
|
/** @var ISession */ |
|
52
|
|
|
protected $session; |
|
53
|
|
|
|
|
54
|
|
|
/** @var ISecureRandom */ |
|
55
|
|
|
protected $secureRandom; |
|
56
|
|
|
|
|
57
|
|
|
/** @var IL10N */ |
|
58
|
|
|
protected $l10n; |
|
59
|
|
|
|
|
60
|
|
|
private function getSessionKey() { |
|
61
|
|
|
return "twofactor_gateway_$this->gatewayId_secret"; |
|
|
|
|
|
|
62
|
|
|
} |
|
63
|
|
|
|
|
64
|
|
|
public function __construct(string $gatewayId, |
|
65
|
|
|
IGateway $gateway, |
|
66
|
|
|
StateStorage $stateStorage, |
|
67
|
|
|
ISession $session, |
|
68
|
|
|
ISecureRandom $secureRandom, |
|
69
|
|
|
IL10N $l10n) { |
|
70
|
|
|
$this->gateway = $gateway; |
|
71
|
|
|
$this->gatewayId = $gatewayId; |
|
72
|
|
|
$this->stateStorage = $stateStorage; |
|
73
|
|
|
$this->session = $session; |
|
74
|
|
|
$this->secureRandom = $secureRandom; |
|
75
|
|
|
$this->l10n = $l10n; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* Get unique identifier of this 2FA provider |
|
80
|
|
|
*/ |
|
81
|
|
|
public function getId(): string { |
|
82
|
|
|
return "gateway_$this->gatewayId"; |
|
83
|
|
|
} |
|
84
|
|
|
|
|
85
|
|
|
private function getSecret(): string { |
|
86
|
|
|
if ($this->session->exists($this->getSessionKey())) { |
|
87
|
|
|
return $this->session->get($this->getSessionKey()); |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
|
|
$secret = $this->secureRandom->generate(6, ISecureRandom::CHAR_DIGITS); |
|
91
|
|
|
$this->session->set($this->getSessionKey(), $secret); |
|
92
|
|
|
|
|
93
|
|
|
return $secret; |
|
94
|
|
|
} |
|
95
|
|
|
|
|
96
|
|
|
/** |
|
97
|
|
|
* Get the template for rending the 2FA provider view |
|
98
|
|
|
*/ |
|
99
|
|
|
public function getTemplate(IUser $user): Template { |
|
100
|
|
|
$secret = $this->getSecret(); |
|
101
|
|
|
|
|
102
|
|
|
try { |
|
103
|
|
|
$identifier = $this->stateStorage->get($user)->getIdentifier(); |
|
104
|
|
|
$this->gateway->send( |
|
105
|
|
|
$user, |
|
106
|
|
|
$identifier, |
|
107
|
|
|
$this->l10n->t('%s is your Nextcloud authentication code', [ |
|
108
|
|
|
$secret |
|
109
|
|
|
]) |
|
110
|
|
|
); |
|
111
|
|
|
} catch (SmsTransmissionException $ex) { |
|
|
|
|
|
|
112
|
|
|
return new Template('twofactor_gateway', 'error'); |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
|
|
$tmpl = new Template('twofactor_gateway', 'challenge'); |
|
116
|
|
|
$tmpl->assign('phone', PhoneNumberMask::maskNumber($identifier)); |
|
|
|
|
|
|
117
|
|
|
return $tmpl; |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
|
|
/** |
|
121
|
|
|
* Verify the given challenge |
|
122
|
|
|
*/ |
|
123
|
|
|
public function verifyChallenge(IUser $user, string $challenge): bool { |
|
124
|
|
|
$valid = $this->session->exists($this->getSessionKey()) |
|
125
|
|
|
&& $this->session->get($this->getSessionKey()) === $challenge; |
|
126
|
|
|
|
|
127
|
|
|
if ($valid) { |
|
128
|
|
|
$this->session->remove($this->getSessionKey()); |
|
129
|
|
|
} |
|
130
|
|
|
|
|
131
|
|
|
return $valid; |
|
132
|
|
|
} |
|
133
|
|
|
|
|
134
|
|
|
/** |
|
135
|
|
|
* Decides whether 2FA is enabled for the given user |
|
136
|
|
|
*/ |
|
137
|
|
|
public function isTwoFactorAuthEnabledForUser(IUser $user): bool { |
|
138
|
|
|
return $this->stateStorage->get($user)->getState() === self::STATE_ENABLED; |
|
139
|
|
|
} |
|
140
|
|
|
|
|
141
|
|
|
} |
|
142
|
|
|
|
nextcloud /
twofactor_gateway
Loading history...