|
1
|
|
|
<?php declare(strict_types=1); |
|
2
|
|
|
|
|
3
|
|
|
namespace ApiClients\Middleware\Cache; |
|
4
|
|
|
|
|
5
|
|
|
use ApiClients\Foundation\Middleware\DefaultPriorityTrait; |
|
6
|
|
|
use ApiClients\Foundation\Middleware\ErrorTrait; |
|
7
|
|
|
use ApiClients\Foundation\Middleware\MiddlewareInterface; |
|
8
|
|
|
use Psr\Http\Message\RequestInterface; |
|
9
|
|
|
use Psr\Http\Message\ResponseInterface; |
|
10
|
|
|
use React\Cache\CacheInterface; |
|
11
|
|
|
use React\Promise\CancellablePromiseInterface; |
|
12
|
|
|
use React\Promise\PromiseInterface; |
|
13
|
|
|
use RingCentral\Psr7\BufferStream; |
|
14
|
|
|
use function React\Promise\reject; |
|
15
|
|
|
use function React\Promise\resolve; |
|
16
|
|
|
use Throwable; |
|
17
|
|
|
|
|
18
|
|
|
final class CacheMiddleware implements MiddlewareInterface |
|
19
|
|
|
{ |
|
20
|
|
|
const DEFAULT_GLUE = '/'; |
|
21
|
|
|
|
|
22
|
|
|
/** |
|
23
|
|
|
* @var CacheInterface[] |
|
24
|
|
|
*/ |
|
25
|
|
|
private $cache; |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* @var string[] |
|
29
|
|
|
*/ |
|
30
|
|
|
private $key; |
|
31
|
|
|
|
|
32
|
|
|
/** |
|
33
|
|
|
* @var RequestInterface[] |
|
34
|
|
|
*/ |
|
35
|
|
|
private $request; |
|
36
|
|
|
|
|
37
|
|
|
/** |
|
38
|
|
|
* @var bool[] |
|
39
|
|
|
*/ |
|
40
|
|
|
private $store = false; |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* @var StrategyInterface[] |
|
44
|
|
|
*/ |
|
45
|
|
|
private $strategy; |
|
46
|
|
|
|
|
47
|
|
|
/** |
|
48
|
|
|
* @param RequestInterface $request |
|
49
|
|
|
* @param array $options |
|
50
|
|
|
* @return CancellablePromiseInterface |
|
51
|
|
|
*/ |
|
52
|
|
|
public function pre( |
|
53
|
|
|
RequestInterface $request, |
|
54
|
|
|
string $transactionId, |
|
55
|
|
|
array $options = [] |
|
56
|
|
|
): CancellablePromiseInterface { |
|
57
|
|
|
if (!isset($options[self::class][Options::CACHE]) || !isset($options[self::class][Options::STRATEGY])) { |
|
58
|
|
|
return resolve($request); |
|
59
|
|
|
} |
|
60
|
|
|
$this->cache[$transactionId] = $options[self::class][Options::CACHE]; |
|
61
|
|
|
$this->strategy[$transactionId] = $options[self::class][Options::STRATEGY]; |
|
62
|
|
|
if (!($this->cache[$transactionId] instanceof CacheInterface) || |
|
63
|
|
|
!($this->strategy[$transactionId] instanceof StrategyInterface) |
|
64
|
|
|
) { |
|
65
|
|
|
return resolve($request); |
|
66
|
|
|
} |
|
67
|
|
|
|
|
68
|
|
|
if ($request->getMethod() !== 'GET') { |
|
69
|
|
|
$this->cleanUpTransaction($transactionId); |
|
70
|
|
|
return resolve($request); |
|
71
|
|
|
} |
|
72
|
|
|
|
|
73
|
|
|
$this->request[$transactionId] = $request; |
|
74
|
|
|
$this->key[$transactionId] = CacheKey::create( |
|
75
|
|
|
$this->request[$transactionId]->getUri(), |
|
76
|
|
|
$options[self::class][Options::GLUE] ?? self::DEFAULT_GLUE |
|
77
|
|
|
); |
|
78
|
|
|
|
|
79
|
|
|
return $this->cache[$transactionId]->get($this->key[$transactionId])->then(function (string $json) use ($transactionId) { |
|
80
|
|
|
$document = Document::createFromString($json); |
|
81
|
|
|
|
|
82
|
|
|
if ($document->hasExpired()) { |
|
83
|
|
|
$this->cache[$transactionId]->remove($this->key[$transactionId]); |
|
84
|
|
|
return resolve($this->request[$transactionId]); |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
return reject($document->getResponse()); |
|
88
|
|
|
}, function () use ($transactionId) { |
|
89
|
|
|
return resolve($this->request[$transactionId]); |
|
90
|
|
|
}); |
|
91
|
|
|
} |
|
92
|
|
|
|
|
93
|
|
|
/** |
|
94
|
|
|
* @param ResponseInterface $response |
|
95
|
|
|
* @param array $options |
|
96
|
|
|
* @return CancellablePromiseInterface |
|
97
|
|
|
*/ |
|
98
|
|
|
public function post( |
|
99
|
|
|
ResponseInterface $response, |
|
100
|
|
|
string $transactionId, |
|
101
|
|
|
array $options = [] |
|
102
|
|
|
): CancellablePromiseInterface { |
|
103
|
|
|
if (!isset($this->request[$transactionId]) || |
|
104
|
|
|
!($this->request[$transactionId] instanceof RequestInterface) |
|
105
|
|
|
) { |
|
106
|
|
|
$this->cleanUpTransaction($transactionId); |
|
107
|
|
|
return resolve($response); |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
|
|
$this->store[$transactionId] = $this->strategy[$transactionId]-> |
|
111
|
|
|
decide($this->request[$transactionId], $response); |
|
112
|
|
|
|
|
113
|
|
|
if (!$this->store[$transactionId]) { |
|
114
|
|
|
$this->cleanUpTransaction($transactionId); |
|
115
|
|
|
return resolve($response); |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
return $this->hasBody($response)->then(function (ResponseInterface $response) use ($transactionId) { |
|
119
|
|
|
$document = Document::createFromResponse( |
|
120
|
|
|
$response, |
|
121
|
|
|
$this->strategy[$transactionId]->determineTtl( |
|
122
|
|
|
$this->request[$transactionId], |
|
123
|
|
|
$response |
|
124
|
|
|
) |
|
125
|
|
|
); |
|
126
|
|
|
|
|
127
|
|
|
$this->cache[$transactionId]->set($this->key[$transactionId], (string)$document); |
|
128
|
|
|
|
|
129
|
|
|
return resolve($document->getResponse()); |
|
130
|
|
|
}, function () use ($response) { |
|
131
|
|
|
return resolve($response); |
|
132
|
|
|
})->always(function () use ($transactionId) { |
|
133
|
|
|
$this->cleanUpTransaction($transactionId); |
|
134
|
|
|
}); |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
public function error( |
|
138
|
|
|
Throwable $throwable, |
|
139
|
|
|
string $transactionId, |
|
140
|
|
|
array $options = [] |
|
141
|
|
|
): CancellablePromiseInterface { |
|
142
|
|
|
$this->cleanUpTransaction($transactionId); |
|
143
|
|
|
return reject($throwable); |
|
144
|
|
|
} |
|
145
|
|
|
|
|
146
|
|
|
|
|
147
|
|
|
/** |
|
148
|
|
|
* @param ResponseInterface $response |
|
149
|
|
|
* @return PromiseInterface |
|
150
|
|
|
*/ |
|
151
|
|
|
protected function hasBody(ResponseInterface $response): PromiseInterface |
|
152
|
|
|
{ |
|
153
|
|
|
if ($response->getBody() instanceof BufferStream) { |
|
154
|
|
|
return resolve($response); |
|
155
|
|
|
} |
|
156
|
|
|
|
|
157
|
|
|
return reject(); |
|
158
|
|
|
} |
|
159
|
|
|
|
|
160
|
|
|
protected function cleanUpTransaction(string $transactionId) |
|
161
|
|
|
{ |
|
162
|
|
|
if (isset($this->cache[$transactionId])) { |
|
163
|
|
|
unset($this->cache[$transactionId]); |
|
164
|
|
|
} |
|
165
|
|
|
|
|
166
|
|
|
if (isset($this->strategy[$transactionId])) { |
|
167
|
|
|
unset($this->strategy[$transactionId]); |
|
168
|
|
|
} |
|
169
|
|
|
|
|
170
|
|
|
if (isset($this->request[$transactionId])) { |
|
171
|
|
|
unset($this->request[$transactionId]); |
|
172
|
|
|
} |
|
173
|
|
|
|
|
174
|
|
|
if (isset($this->key[$transactionId])) { |
|
175
|
|
|
unset($this->key[$transactionId]); |
|
176
|
|
|
} |
|
177
|
|
|
|
|
178
|
|
|
if (isset($this->store[$transactionId])) { |
|
179
|
|
|
unset($this->store[$transactionId]); |
|
180
|
|
|
} |
|
181
|
|
|
} |
|
182
|
|
|
} |
|
183
|
|
|
|
php-api-clients /
middleware-cache
