|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* This file is part of the FOSHttpCache package. |
|
5
|
|
|
* |
|
6
|
|
|
* (c) FriendsOfSymfony <http://friendsofsymfony.github.com/> |
|
7
|
|
|
* |
|
8
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
9
|
|
|
* file that was distributed with this source code. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
namespace FOS\HttpCache\ProxyClient; |
|
13
|
|
|
|
|
14
|
|
|
use Http\Discovery\MessageFactoryDiscovery; |
|
15
|
|
|
use Http\Message\RequestFactory; |
|
16
|
|
|
use Psr\Http\Message\UriInterface; |
|
17
|
|
|
use Symfony\Component\OptionsResolver\OptionsResolver; |
|
18
|
|
|
|
|
19
|
|
|
/** |
|
20
|
|
|
* Base class for HTTP based caching proxy client. |
|
21
|
|
|
* |
|
22
|
|
|
* @author David de Boer <[email protected]> |
|
23
|
|
|
*/ |
|
24
|
|
|
abstract class HttpProxyClient implements ProxyClient |
|
25
|
|
|
{ |
|
26
|
|
|
/** |
|
27
|
|
|
* Dispatcher for invalidation HTTP requests. |
|
28
|
|
|
* |
|
29
|
|
|
* @var HttpDispatcher |
|
30
|
|
|
*/ |
|
31
|
|
|
private $httpDispatcher; |
|
32
|
|
|
|
|
33
|
|
|
/** |
|
34
|
|
|
* @var RequestFactory |
|
35
|
|
|
*/ |
|
36
|
|
|
private $requestFactory; |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* The options configured in the constructor argument or default values. |
|
40
|
|
|
* |
|
41
|
|
|
* @var array The resolved options |
|
42
|
|
|
*/ |
|
43
|
|
|
protected $options; |
|
44
|
|
|
|
|
45
|
|
|
/** |
|
46
|
|
|
* Constructor. |
|
47
|
|
|
* |
|
48
|
|
|
* The base class has no options. |
|
49
|
|
|
* |
|
50
|
|
|
* @param HttpDispatcher $httpDispatcher Helper to send HTTP requests to caching proxy |
|
51
|
|
|
* @param array $options Options for this client |
|
52
|
|
|
* @param RequestFactory|null $messageFactory Factory for PSR-7 messages. If none supplied, |
|
53
|
|
|
* a default one is created |
|
54
|
|
|
*/ |
|
55
|
33 |
|
public function __construct( |
|
56
|
|
|
HttpDispatcher $httpDispatcher, |
|
57
|
|
|
array $options = [], |
|
58
|
1 |
|
RequestFactory $messageFactory = null |
|
59
|
1 |
|
) { |
|
60
|
33 |
|
$this->httpDispatcher = $httpDispatcher; |
|
61
|
33 |
|
$this->options = $this->configureOptions()->resolve($options); |
|
62
|
33 |
|
$this->requestFactory = $messageFactory ?: MessageFactoryDiscovery::find(); |
|
63
|
33 |
|
} |
|
64
|
|
|
|
|
65
|
|
|
/** |
|
66
|
|
|
* {@inheritdoc} |
|
67
|
|
|
*/ |
|
68
|
21 |
|
public function flush() |
|
69
|
|
|
{ |
|
70
|
21 |
|
return $this->httpDispatcher->flush(); |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
/** |
|
74
|
|
|
* Get options resolver with default settings. |
|
75
|
|
|
* |
|
76
|
|
|
* @return OptionsResolver |
|
77
|
|
|
*/ |
|
78
|
33 |
|
protected function configureOptions() |
|
79
|
|
|
{ |
|
80
|
33 |
|
return new OptionsResolver(); |
|
81
|
|
|
} |
|
82
|
|
|
|
|
83
|
|
|
/** |
|
84
|
|
|
* Create a request and queue it with the HTTP dispatcher. |
|
85
|
|
|
* |
|
86
|
|
|
* @param string $method |
|
87
|
|
|
* @param string|UriInterface $url |
|
88
|
|
|
* @param array $headers |
|
89
|
|
|
* @param bool $validateHost see HttpDispatcher::invalidate |
|
90
|
|
|
*/ |
|
91
|
31 |
|
protected function queueRequest($method, $url, array $headers, $validateHost = true) |
|
92
|
|
|
{ |
|
93
|
31 |
|
$this->httpDispatcher->invalidate( |
|
94
|
31 |
|
$this->requestFactory->createRequest($method, $url, $headers), |
|
95
|
|
|
$validateHost |
|
96
|
31 |
|
); |
|
97
|
31 |
|
} |
|
98
|
|
|
|
|
99
|
|
|
/** |
|
100
|
|
|
* Make sure that the tags are valid. |
|
101
|
|
|
* |
|
102
|
|
|
* Reusable function for proxy clients. |
|
103
|
|
|
* Escapes `,` and `\n` (newline) characters. |
|
104
|
|
|
* |
|
105
|
|
|
* @param array $tags The tags to escape |
|
106
|
|
|
* |
|
107
|
|
|
* @return array Sane tags |
|
108
|
|
|
*/ |
|
109
|
|
|
protected function escapeTags(array $tags) |
|
110
|
|
|
{ |
|
111
|
6 |
|
array_walk($tags, function (&$tag) { |
|
112
|
6 |
|
$tag = str_replace([',', "\n"], ['_', '_'], $tag); |
|
113
|
6 |
|
}); |
|
114
|
|
|
|
|
115
|
6 |
|
return $tags; |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
/** |
|
119
|
|
|
* Splits a header value into an array of values. E.g. useful for tag |
|
120
|
|
|
* invalidation requests where you might need multiple requests if you |
|
121
|
|
|
* want to invalidate too many cache tags (so the header would get too long). |
|
122
|
|
|
* |
|
123
|
|
|
* @param string $value |
|
124
|
|
|
* @param int $length |
|
125
|
|
|
* @param string $delimiter |
|
126
|
|
|
* |
|
127
|
|
|
* @return array |
|
128
|
|
|
*/ |
|
129
|
2 |
|
protected function splitLongHeaderValue($value, $length = 7500, $delimiter = ',') |
|
130
|
|
|
{ |
|
131
|
2 |
|
if (mb_strlen($value) <= $length) { |
|
132
|
1 |
|
return [$value]; |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
1 |
|
$tmp = []; |
|
136
|
1 |
|
$chunks = explode($delimiter, $value); |
|
137
|
1 |
|
$currentLength = 0; |
|
138
|
1 |
|
$index = 0; |
|
139
|
|
|
|
|
140
|
1 |
|
foreach ($chunks as $chunk) { |
|
141
|
1 |
|
$chunkLength = mb_strlen($chunk) + 1; |
|
142
|
|
|
|
|
143
|
1 |
|
if (($currentLength + $chunkLength) <= $length) { |
|
144
|
1 |
|
$tmp[$index][] = $chunk; |
|
145
|
1 |
|
$currentLength += $chunkLength; |
|
146
|
1 |
|
} else { |
|
147
|
2 |
|
++$index; |
|
148
|
1 |
|
$currentLength = $chunkLength; |
|
149
|
1 |
|
$tmp[$index][] = $chunk; |
|
150
|
|
|
} |
|
151
|
1 |
|
} |
|
152
|
|
|
|
|
153
|
1 |
|
$result = []; |
|
154
|
1 |
|
foreach ($tmp as $values) { |
|
155
|
1 |
|
$result[] = implode($delimiter, $values); |
|
156
|
1 |
|
} |
|
157
|
|
|
|
|
158
|
1 |
|
return $result; |
|
159
|
|
|
} |
|
160
|
|
|
} |
|
161
|
|
|
|
FriendsOfSymfony /
FOSHttpCache
