|
1
|
|
|
<?php declare(strict_types=1); |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* Copyright 2022 SURFnet bv |
|
5
|
|
|
* |
|
6
|
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); |
|
7
|
|
|
* you may not use this file except in compliance with the License. |
|
8
|
|
|
* You may obtain a copy of the License at |
|
9
|
|
|
* |
|
10
|
|
|
* http://www.apache.org/licenses/LICENSE-2.0 |
|
11
|
|
|
* |
|
12
|
|
|
* Unless required by applicable law or agreed to in writing, software |
|
13
|
|
|
* distributed under the License is distributed on an "AS IS" BASIS, |
|
14
|
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
15
|
|
|
* See the License for the specific language governing permissions and |
|
16
|
|
|
* limitations under the License. |
|
17
|
|
|
*/ |
|
18
|
|
|
|
|
19
|
|
|
namespace Surfnet\StepupGateway\GatewayBundle\Sso2fa\Http; |
|
20
|
|
|
|
|
21
|
|
|
use Psr\Log\LoggerInterface; |
|
22
|
|
|
use Surfnet\StepupGateway\GatewayBundle\Sso2fa\Crypto\CryptoHelperInterface; |
|
23
|
|
|
use Surfnet\StepupGateway\GatewayBundle\Sso2fa\Exception\CookieNotFoundException; |
|
24
|
|
|
use Surfnet\StepupGateway\GatewayBundle\Sso2fa\ValueObject\Configuration; |
|
25
|
|
|
use Surfnet\StepupGateway\GatewayBundle\Sso2fa\ValueObject\CookieValueInterface; |
|
26
|
|
|
use Symfony\Component\HttpFoundation\Cookie; |
|
27
|
|
|
use Symfony\Component\HttpFoundation\Request; |
|
28
|
|
|
use Symfony\Component\HttpFoundation\Response; |
|
29
|
|
|
|
|
30
|
|
|
class CookieHelper implements CookieHelperInterface |
|
31
|
|
|
{ |
|
32
|
|
|
/** |
|
33
|
|
|
* By default, we set the cookie with the SameSite: NONE attribute. |
|
34
|
|
|
* |
|
35
|
|
|
* SameSite: NONE ensures the browser sends the cookie on cross domain requests. Which are typically performed |
|
36
|
|
|
* when doing SAML authentications. Using STRICT or LAX will cause the cookie not being sent in several scenarios. |
|
37
|
|
|
*/ |
|
38
|
|
|
private const SAME_SITE = Cookie::SAMESITE_NONE; |
|
39
|
|
|
|
|
40
|
|
|
/** |
|
41
|
|
|
* @var Configuration |
|
42
|
|
|
*/ |
|
43
|
|
|
private $configuration; |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* @var CryptoHelperInterface |
|
47
|
|
|
*/ |
|
48
|
|
|
private $encryptionHelper; |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* @var LoggerInterface |
|
52
|
|
|
*/ |
|
53
|
|
|
private $logger; |
|
54
|
|
|
|
|
55
|
|
|
public function __construct( |
|
56
|
|
|
Configuration $configuration, |
|
57
|
|
|
CryptoHelperInterface $encryptionHelper, |
|
58
|
|
|
LoggerInterface $logger |
|
59
|
|
|
) { |
|
60
|
|
|
$this->configuration = $configuration; |
|
61
|
|
|
$this->encryptionHelper = $encryptionHelper; |
|
62
|
|
|
$this->logger = $logger; |
|
63
|
|
|
} |
|
64
|
|
|
|
|
65
|
|
|
public function write(Response $response, CookieValueInterface $value): void |
|
66
|
|
|
{ |
|
67
|
|
|
// The CookieValue is encrypted |
|
68
|
|
|
$encryptedCookieValue = $this->encryptionHelper->encrypt($value); |
|
69
|
|
|
$fingerprint = $this->hashFingerprint($encryptedCookieValue); |
|
70
|
|
|
$this->logger->notice(sprintf('Writing a SSO on 2FA cookie with fingerprint %s', $fingerprint)); |
|
71
|
|
|
// Create a Symfony HttpFoundation cookie object |
|
72
|
|
|
$cookie = $this->createCookieWithValue($encryptedCookieValue); |
|
73
|
|
|
// Which is added to the response headers |
|
74
|
|
|
$response->headers->setCookie($cookie); |
|
75
|
|
|
} |
|
76
|
|
|
|
|
77
|
|
|
/** |
|
78
|
|
|
* Retrieve the current cookie from the Request if it exists. |
|
79
|
|
|
*/ |
|
80
|
|
|
public function read(Request $request): CookieValueInterface |
|
81
|
|
|
{ |
|
82
|
|
|
if (!$request->cookies || !$request->cookies->has($this->configuration->getName())) { |
|
83
|
|
|
throw new CookieNotFoundException(); |
|
84
|
|
|
} |
|
85
|
|
|
$cookie = $request->cookies->get($this->configuration->getName()); |
|
86
|
|
|
$fingerprint = $this->hashFingerprint($cookie); |
|
87
|
|
|
$this->logger->notice(sprintf('Reading a SSO on 2FA cookie with fingerprint %s', $fingerprint)); |
|
88
|
|
|
return $this->encryptionHelper->decrypt($cookie); |
|
89
|
|
|
} |
|
90
|
|
|
|
|
91
|
|
|
public function fingerprint(Request $request): string |
|
92
|
|
|
{ |
|
93
|
|
|
if (!$request->cookies || !$request->cookies->has($this->configuration->getName())) { |
|
94
|
|
|
throw new CookieNotFoundException(); |
|
95
|
|
|
} |
|
96
|
|
|
$cookie = $request->cookies->get($this->configuration->getName()); |
|
97
|
|
|
return $this->hashFingerprint($cookie); |
|
98
|
|
|
} |
|
99
|
|
|
|
|
100
|
|
|
private function createCookieWithValue($value): Cookie |
|
101
|
|
|
{ |
|
102
|
|
|
return new Cookie( |
|
103
|
|
|
$this->configuration->getName(), |
|
104
|
|
|
$value, |
|
105
|
|
|
$this->configuration->isPersistent() ? $this->getTimestamp($this->configuration->getLifetime()): 0, |
|
106
|
|
|
'/', |
|
107
|
|
|
null, |
|
108
|
|
|
true, |
|
109
|
|
|
true, |
|
110
|
|
|
false, |
|
111
|
|
|
self::SAME_SITE |
|
112
|
|
|
); |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
|
|
private function hashFingerprint(string $encryptedCookieValue): string |
|
116
|
|
|
{ |
|
117
|
|
|
return hash('sha256', $encryptedCookieValue); |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
|
|
private function getTimestamp(int $expiresInSeconds): int |
|
121
|
|
|
{ |
|
122
|
|
|
$currentTimestamp = time(); |
|
123
|
|
|
return $currentTimestamp + $expiresInSeconds; |
|
124
|
|
|
} |
|
125
|
|
|
} |
|
126
|
|
|
|
OpenConext /
Stepup-Gateway
