This repository has been archived by the owner on Nov 27, 2023. It is now read-only.
/
SharedKeyAuthScheme.php
137 lines (122 loc) · 4.67 KB
/
SharedKeyAuthScheme.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
<?php
/**
* LICENSE: Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0.
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* PHP version 5
*
* @category Microsoft
*
* @author Azure PHP SDK <azurephpsdk@microsoft.com>
* @copyright 2012 Microsoft Corporation
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
*
* @link https://github.com/windowsazure/azure-sdk-for-php
*/
namespace WindowsAzure\Common\Internal\Authentication;
use WindowsAzure\Common\Internal\Resources;
use WindowsAzure\Common\Internal\Utilities;
/**
* Provides shared key authentication scheme for blob and queue. For more info
* check: http://msdn.microsoft.com/en-us/library/windowsazure/dd179428.aspx.
*
* @category Microsoft
*
* @author Azure PHP SDK <azurephpsdk@microsoft.com>
* @copyright 2012 Microsoft Corporation
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
*
* @version Release: 0.4.4_2016-08
*
* @link https://github.com/windowsazure/azure-sdk-for-php
*/
class SharedKeyAuthScheme extends StorageAuthScheme
{
protected $includedHeaders;
/**
* Constructor.
*
* @param string $accountName storage account name.
* @param string $accountKey storage account primary or secondary key.
*
* @return
* WindowsAzure\Common\Internal\Authentication\SharedKeyAuthScheme
*/
public function __construct($accountName, $accountKey)
{
parent::__construct($accountName, $accountKey);
$this->includedHeaders = array();
$this->includedHeaders[] = Resources::CONTENT_ENCODING;
$this->includedHeaders[] = Resources::CONTENT_LANGUAGE;
$this->includedHeaders[] = Resources::CONTENT_LENGTH;
$this->includedHeaders[] = Resources::CONTENT_MD5;
$this->includedHeaders[] = Resources::CONTENT_TYPE;
$this->includedHeaders[] = Resources::DATE;
$this->includedHeaders[] = Resources::IF_MODIFIED_SINCE;
$this->includedHeaders[] = Resources::IF_MATCH;
$this->includedHeaders[] = Resources::IF_NONE_MATCH;
$this->includedHeaders[] = Resources::IF_UNMODIFIED_SINCE;
$this->includedHeaders[] = Resources::RANGE;
}
/**
* Computes the authorization signature for blob and queue shared key.
*
* @param array $headers request headers.
* @param string $url reuqest url.
* @param array $queryParams query variables.
* @param string $httpMethod request http method.
*
* @see Blob and Queue Services (Shared Key Authentication) at
* http://msdn.microsoft.com/en-us/library/windowsazure/dd179428.aspx
*
* @return string
*/
protected function computeSignature($headers, $url, $queryParams, $httpMethod)
{
$canonicalizedHeaders = parent::computeCanonicalizedHeaders($headers);
$canonicalizedResource = parent::computeCanonicalizedResource(
$url, $queryParams
);
$stringToSign = array();
$stringToSign[] = strtoupper($httpMethod);
foreach ($this->includedHeaders as $header) {
$stringToSign[] = Utilities::tryGetValue($headers, $header);
}
if (count($canonicalizedHeaders) > 0) {
$stringToSign[] = implode("\n", $canonicalizedHeaders);
}
$stringToSign[] = $canonicalizedResource;
$stringToSign = implode("\n", $stringToSign);
return $stringToSign;
}
/**
* Returns authorization header to be included in the request.
*
* @param array $headers request headers.
* @param string $url reuqest url.
* @param array $queryParams query variables.
* @param string $httpMethod request http method.
*
* @see Specifying the Authorization Header section at
* http://msdn.microsoft.com/en-us/library/windowsazure/dd179428.aspx
*
* @return string
*/
public function getAuthorizationHeader($headers, $url, $queryParams, $httpMethod)
{
$signature = $this->computeSignature(
$headers, $url, $queryParams, $httpMethod
);
return 'SharedKey '.$this->accountName.':'.base64_encode(
hash_hmac('sha256', $signature, base64_decode($this->accountKey), true)
);
}
}