| 1441 |
ariadna |
1 |
<?php
|
|
|
2 |
|
|
|
3 |
namespace Aws\DSQL;
|
|
|
4 |
|
|
|
5 |
use Aws\Credentials\CredentialsInterface;
|
|
|
6 |
use Aws\Credentials\Credentials;
|
|
|
7 |
use Aws\Signature\SignatureV4;
|
|
|
8 |
use GuzzleHttp\Psr7\Request;
|
|
|
9 |
use GuzzleHttp\Psr7\Uri;
|
|
|
10 |
use GuzzleHttp\Promise;
|
|
|
11 |
use Aws;
|
|
|
12 |
|
|
|
13 |
/**
|
|
|
14 |
* Generates auth tokens to connect to DSQL database clusters.
|
|
|
15 |
*/
|
|
|
16 |
class AuthTokenGenerator
|
|
|
17 |
{
|
|
|
18 |
private const DB_CONNECT = 'DbConnect';
|
|
|
19 |
private const DB_CONNECT_ADMIN = 'DbConnectAdmin';
|
|
|
20 |
private const SIGNING_NAME = 'dsql';
|
|
|
21 |
private const DEFAULT_EXPIRATION_TIME_SECONDS = 900;
|
|
|
22 |
|
|
|
23 |
/**
|
|
|
24 |
* @var Credentials|callable
|
|
|
25 |
*/
|
|
|
26 |
private $credentialProvider;
|
|
|
27 |
|
|
|
28 |
/**
|
|
|
29 |
* The constructor takes an instance of Credentials or a CredentialProvider
|
|
|
30 |
*
|
|
|
31 |
* @param Credentials|callable $creds
|
|
|
32 |
*/
|
|
|
33 |
public function __construct(Credentials | callable $creds)
|
|
|
34 |
{
|
|
|
35 |
if ($creds instanceof CredentialsInterface) {
|
|
|
36 |
$promise = new Promise\FulfilledPromise($creds);
|
|
|
37 |
$this->credentialProvider = Aws\constantly($promise);
|
|
|
38 |
} else {
|
|
|
39 |
$this->credentialProvider = $creds;
|
|
|
40 |
}
|
|
|
41 |
}
|
|
|
42 |
|
|
|
43 |
/**
|
|
|
44 |
* @param string $endpoint
|
|
|
45 |
* @param string $region
|
|
|
46 |
* @param int $expiration
|
|
|
47 |
*
|
|
|
48 |
* @return string
|
|
|
49 |
*/
|
|
|
50 |
public function generateDbConnectAuthToken(
|
|
|
51 |
string $endpoint,
|
|
|
52 |
string $region,
|
|
|
53 |
int $expiration = self::DEFAULT_EXPIRATION_TIME_SECONDS
|
|
|
54 |
): string
|
|
|
55 |
{
|
|
|
56 |
return $this->createToken($endpoint, $region, self::DB_CONNECT, $expiration);
|
|
|
57 |
}
|
|
|
58 |
|
|
|
59 |
/**
|
|
|
60 |
* @param string $endpoint
|
|
|
61 |
* @param string $region
|
|
|
62 |
* @param int $expiration
|
|
|
63 |
*
|
|
|
64 |
* @return string
|
|
|
65 |
*/
|
|
|
66 |
public function generateDbConnectAdminAuthToken(
|
|
|
67 |
string $endpoint,
|
|
|
68 |
string $region,
|
|
|
69 |
int $expiration = self::DEFAULT_EXPIRATION_TIME_SECONDS
|
|
|
70 |
): string
|
|
|
71 |
{
|
|
|
72 |
return $this->createToken($endpoint, $region, self::DB_CONNECT_ADMIN, $expiration);
|
|
|
73 |
}
|
|
|
74 |
|
|
|
75 |
/**
|
|
|
76 |
* Creates token for database connection
|
|
|
77 |
*
|
|
|
78 |
* @param string $endpoint The database hostname
|
|
|
79 |
* @param string $region The region where the database is located
|
|
|
80 |
* @param string $action Db action to perform
|
|
|
81 |
* @param int $expiration The expiration of the token in seconds
|
|
|
82 |
*
|
|
|
83 |
* @return string Generated token
|
|
|
84 |
*/
|
|
|
85 |
private function createToken(
|
|
|
86 |
string $endpoint,
|
|
|
87 |
string $region,
|
|
|
88 |
string $action,
|
|
|
89 |
int $expiration
|
|
|
90 |
): string
|
|
|
91 |
{
|
|
|
92 |
if ($expiration <= 0) {
|
|
|
93 |
throw new \InvalidArgumentException(
|
|
|
94 |
"Lifetime must be a positive number, was {$expiration}"
|
|
|
95 |
);
|
|
|
96 |
}
|
|
|
97 |
|
|
|
98 |
if (empty($region)) {
|
|
|
99 |
throw new \InvalidArgumentException('Region must be a non-empty string.');
|
|
|
100 |
}
|
|
|
101 |
|
|
|
102 |
if (empty($endpoint)) {
|
|
|
103 |
throw new \InvalidArgumentException('Endpoint must be a non-empty string.');
|
|
|
104 |
}
|
|
|
105 |
|
|
|
106 |
$uri = new Uri($endpoint);
|
|
|
107 |
if (empty($uri->getHost())) {
|
|
|
108 |
$uri = $uri->withHost($endpoint);
|
|
|
109 |
}
|
|
|
110 |
$uri = $uri->withPath('/')->withQuery('Action=' . $action);
|
|
|
111 |
|
|
|
112 |
$request = new Request('GET', $uri);
|
|
|
113 |
$signer = new SignatureV4(self::SIGNING_NAME, $region);
|
|
|
114 |
$provider = $this->credentialProvider;
|
|
|
115 |
|
|
|
116 |
$url = (string) $signer->presign(
|
|
|
117 |
$request,
|
|
|
118 |
$provider()->wait(),
|
|
|
119 |
'+' . $expiration . ' seconds'
|
|
|
120 |
)->getUri();
|
|
|
121 |
|
|
|
122 |
// Remove 2 extra slash from the presigned url result
|
|
|
123 |
return substr($url, 2);
|
|
|
124 |
}
|
|
|
125 |
}
|
|
|
126 |
|