|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace RichanFongdasen\Varnishable\Concerns; |
|
4
|
|
|
|
|
5
|
|
|
use Symfony\Component\HttpFoundation\HeaderBag; |
|
6
|
|
|
use Symfony\Component\HttpFoundation\Response; |
|
7
|
|
|
|
|
8
|
|
|
trait ManipulateHttpResponse |
|
9
|
|
|
{ |
|
10
|
|
|
/** |
|
11
|
|
|
* HTTP Request object. |
|
12
|
|
|
* |
|
13
|
|
|
* @var \Symfony\Component\HttpFoundation\HeaderBag |
|
14
|
|
|
*/ |
|
15
|
|
|
protected $requestHeaders; |
|
16
|
|
|
|
|
17
|
|
|
/** |
|
18
|
|
|
* Acknowledge the ESI support and send a specific |
|
19
|
|
|
* HTTP header as a reply. |
|
20
|
|
|
* |
|
21
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
22
|
|
|
* |
|
23
|
|
|
* @return void |
|
24
|
|
|
*/ |
|
25
|
|
|
protected function acknowledgeEsiSupport(Response $response) |
|
26
|
|
|
{ |
|
27
|
|
|
$esiHeader = $this->getConfig('esi_capability_header'); |
|
28
|
|
|
|
|
29
|
|
|
if ($esiHeader = $this->requestHeaders->get($esiHeader)) { |
|
30
|
|
|
$response->headers->set($this->getConfig('esi_reply_header'), $esiHeader); |
|
31
|
|
|
} |
|
32
|
|
|
} |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* Add cacheable header so varnish can recognize |
|
36
|
|
|
* the response as a cacheable content. |
|
37
|
|
|
* |
|
38
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
39
|
|
|
*/ |
|
40
|
|
|
protected function addCacheableHeader(Response $response) |
|
41
|
|
|
{ |
|
42
|
|
|
$duration = $this->getCacheDuration(); |
|
43
|
|
|
|
|
44
|
|
|
$response->headers->set($this->getConfig('cacheable_header'), '1'); |
|
45
|
|
|
$response->headers->set('Cache-Control', 'public, max-age='.$duration); |
|
46
|
|
|
|
|
47
|
|
|
return $response; |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Add uncacheable header so varnish can recognize |
|
52
|
|
|
* the response as an uncacheable content. |
|
53
|
|
|
* |
|
54
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
55
|
|
|
*/ |
|
56
|
|
|
public function addUncacheableHeader(Response $response) |
|
57
|
|
|
{ |
|
58
|
|
|
return $response->headers->set($this->getConfig('uncacheable_header'), '1'); |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* Normalize the cache duration value and convert |
|
63
|
|
|
* it to seconds. |
|
64
|
|
|
* |
|
65
|
|
|
* @return int|float |
|
66
|
|
|
*/ |
|
67
|
|
|
protected function getCacheDuration() |
|
68
|
|
|
{ |
|
69
|
|
|
return $this->getConfig('cache_duration') * 60; |
|
70
|
|
|
} |
|
71
|
|
|
|
|
72
|
|
|
/** |
|
73
|
|
|
* Manipulate the current Http response. |
|
74
|
|
|
* |
|
75
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
76
|
|
|
* |
|
77
|
|
|
* @return \Symfony\Component\HttpFoundation\Response |
|
78
|
|
|
*/ |
|
79
|
|
|
public function manipulate(Response $response) |
|
80
|
|
|
{ |
|
81
|
|
|
$this->acknowledgeEsiSupport($response); |
|
82
|
|
|
|
|
83
|
|
|
if ($this->shouldNotCache($response)) { |
|
84
|
|
|
return $response; |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
$this->addCacheableHeader($response); |
|
88
|
|
|
$this->addLastModifiedHeader($response); |
|
89
|
|
|
$this->addEtagHeader($response); |
|
90
|
|
|
|
|
91
|
|
|
return $response; |
|
92
|
|
|
} |
|
93
|
|
|
|
|
94
|
|
|
/** |
|
95
|
|
|
* Set cache duration value in minutes. This value will |
|
96
|
|
|
* be added to the HTTP response's Cache-Control header. |
|
97
|
|
|
* |
|
98
|
|
|
* @param int $duration [Cache duration value in minutes] |
|
99
|
|
|
*/ |
|
100
|
|
|
public function setCacheDuration($duration) |
|
101
|
|
|
{ |
|
102
|
|
|
$this->setConfig('cache_duration', (int) $duration); |
|
103
|
|
|
} |
|
104
|
|
|
|
|
105
|
|
|
/** |
|
106
|
|
|
* Set the current Http request headers. |
|
107
|
|
|
* |
|
108
|
|
|
* @param \Symfony\Component\HttpFoundation\HeaderBag $headers |
|
109
|
|
|
*/ |
|
110
|
|
|
public function setRequestHeaders(HeaderBag $headers) |
|
111
|
|
|
{ |
|
112
|
|
|
$this->requestHeaders = $headers; |
|
113
|
|
|
} |
|
114
|
|
|
|
|
115
|
|
|
/** |
|
116
|
|
|
* Check if the current response shouldn't be cached. |
|
117
|
|
|
* |
|
118
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
119
|
|
|
* |
|
120
|
|
|
* @return string|array |
|
121
|
|
|
*/ |
|
122
|
|
|
protected function shouldNotCache(Response $response) |
|
123
|
|
|
{ |
|
124
|
|
|
return $response->headers->get($this->getConfig('uncacheable_header')); |
|
125
|
|
|
} |
|
126
|
|
|
|
|
127
|
|
|
/** |
|
128
|
|
|
* Add an ETag header to the current response. |
|
129
|
|
|
* |
|
130
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
131
|
|
|
* |
|
132
|
|
|
* @return void |
|
133
|
|
|
*/ |
|
134
|
|
|
abstract protected function addEtagHeader(Response $response); |
|
135
|
|
|
|
|
136
|
|
|
/** |
|
137
|
|
|
* Add Last-Modified header to the current response. |
|
138
|
|
|
* |
|
139
|
|
|
* @param \Symfony\Component\HttpFoundation\Response $response |
|
140
|
|
|
* |
|
141
|
|
|
* @return void |
|
142
|
|
|
*/ |
|
143
|
|
|
abstract protected function addLastModifiedHeader(Response $response); |
|
144
|
|
|
|
|
145
|
|
|
/** |
|
146
|
|
|
* Get configuration value for a specific key. |
|
147
|
|
|
* |
|
148
|
|
|
* @param string $key |
|
149
|
|
|
* |
|
150
|
|
|
* @return mixed |
|
151
|
|
|
*/ |
|
152
|
|
|
abstract public function getConfig($key); |
|
153
|
|
|
|
|
154
|
|
|
/** |
|
155
|
|
|
* Set configuration value for a specific key. |
|
156
|
|
|
* |
|
157
|
|
|
* @param string $key |
|
158
|
|
|
* @param mixed $value |
|
159
|
|
|
* |
|
160
|
|
|
* @return void |
|
161
|
|
|
*/ |
|
162
|
|
|
abstract public function setConfig($key, $value); |
|
163
|
|
|
} |
|
164
|
|
|
|
richan-fongdasen /
laravel-varnishable
