|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/* |
|
4
|
|
|
* This file is part of the Veslo project <https://github.com/symfony-doge/veslo>. |
|
5
|
|
|
* |
|
6
|
|
|
* (C) 2019 Pavel Petrov <[email protected]>. |
|
7
|
|
|
* |
|
8
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
9
|
|
|
* file that was distributed with this source code. |
|
10
|
|
|
* |
|
11
|
|
|
* @license https://opensource.org/licenses/GPL-3.0 GPL-3.0 |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
declare(strict_types=1); |
|
15
|
|
|
|
|
16
|
|
|
namespace Veslo\AppBundle\Http\Proxy\Locator; |
|
17
|
|
|
|
|
18
|
|
|
use Exception; |
|
19
|
|
|
use Psr\Log\LoggerInterface; |
|
20
|
|
|
use Symfony\Component\OptionsResolver\OptionsResolver; |
|
21
|
|
|
use Symfony\Component\Serializer\Encoder\DecoderInterface; |
|
22
|
|
|
use Veslo\AppBundle\Cache\CacherInterface; |
|
23
|
|
|
use Veslo\AppBundle\Exception\Http\Proxy\Locator\BadProxyListUriException; |
|
24
|
|
|
use Veslo\AppBundle\Http\Proxy\LocatorInterface; |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* Uses URI string to fetch a proxy list from external source |
|
28
|
|
|
* |
|
29
|
|
|
* Note: you should manage to use an algorithm that doesn't depend on this locator itself |
|
30
|
|
|
* to avoid a cycling references while resolving a proxy list. |
|
31
|
|
|
*/ |
|
32
|
|
|
class UriLocator implements LocatorInterface |
|
33
|
|
|
{ |
|
34
|
|
|
/** |
|
35
|
|
|
* Logger as it is |
|
36
|
|
|
* |
|
37
|
|
|
* @var LoggerInterface |
|
38
|
|
|
*/ |
|
39
|
|
|
private $logger; |
|
40
|
|
|
|
|
41
|
|
|
/** |
|
42
|
|
|
* Decodes a string into PHP data |
|
43
|
|
|
* |
|
44
|
|
|
* @var DecoderInterface |
|
45
|
|
|
*/ |
|
46
|
|
|
private $contentsDecoder; |
|
47
|
|
|
|
|
48
|
|
|
/** |
|
49
|
|
|
* Saves a proxy list in the cache and invalidates it by demand |
|
50
|
|
|
* |
|
51
|
|
|
* @var CacherInterface|null |
|
52
|
|
|
*/ |
|
53
|
|
|
private $proxyCacher; |
|
54
|
|
|
|
|
55
|
|
|
/** |
|
56
|
|
|
* Options for URI proxy locator |
|
57
|
|
|
* |
|
58
|
|
|
* Example: |
|
59
|
|
|
* ``` |
|
60
|
|
|
* [ |
|
61
|
|
|
* 'uri' => 'https://proxy-provider.ltd/my_proxy_list', |
|
62
|
|
|
* 'format' => 'json', |
|
63
|
|
|
* 'decoder_context' => [] |
|
64
|
|
|
* ] |
|
65
|
|
|
* ``` |
|
66
|
|
|
* |
|
67
|
|
|
* @var array |
|
68
|
|
|
*/ |
|
69
|
|
|
private $options; |
|
70
|
|
|
|
|
71
|
|
|
/** |
|
72
|
|
|
* UriLocator constructor. |
|
73
|
|
|
* |
|
74
|
|
|
* @param LoggerInterface $logger Logger as it is |
|
75
|
|
|
* @param DecoderInterface $contentsDecoder Decodes a string into PHP data |
|
76
|
|
|
* @param array $options Options for URI proxy locator |
|
77
|
|
|
*/ |
|
78
|
|
|
public function __construct(LoggerInterface $logger, DecoderInterface $contentsDecoder, array $options) |
|
79
|
|
|
{ |
|
80
|
|
|
$this->logger = $logger; |
|
81
|
|
|
$this->contentsDecoder = $contentsDecoder; |
|
82
|
|
|
$this->proxyCacher = null; |
|
83
|
|
|
|
|
84
|
|
|
$optionsResolver = new OptionsResolver(); |
|
85
|
|
|
$this->configureOptions($optionsResolver); |
|
86
|
|
|
|
|
87
|
|
|
$this->options = $optionsResolver->resolve($options); |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
|
|
/** |
|
91
|
|
|
* {@inheritdoc} |
|
92
|
|
|
* |
|
93
|
|
|
* @throws BadProxyListUriException |
|
94
|
|
|
*/ |
|
95
|
|
|
public function locate(): iterable |
|
96
|
|
|
{ |
|
97
|
|
|
$proxyListUri = $this->options['uri']; |
|
98
|
|
|
$uriContents = false; |
|
|
|
|
|
|
99
|
|
|
|
|
100
|
|
|
try { |
|
101
|
|
|
$uriContents = file_get_contents($proxyListUri); |
|
102
|
|
|
} catch (Exception $e) { |
|
103
|
|
|
$message = $e->getMessage(); |
|
104
|
|
|
|
|
105
|
|
|
$this->logger->error( |
|
106
|
|
|
'An error has been occurred while getting contents by URI.', |
|
107
|
|
|
[ |
|
108
|
|
|
'message' => $message, |
|
109
|
|
|
'uri' => $proxyListUri, |
|
110
|
|
|
] |
|
111
|
|
|
); |
|
112
|
|
|
} |
|
113
|
|
|
|
|
114
|
|
|
if (false === $uriContents) { |
|
115
|
|
|
throw BadProxyListUriException::withProxyListUri($proxyListUri); |
|
116
|
|
|
} |
|
117
|
|
|
|
|
118
|
|
|
$uriContentsFormat = $this->options['format']; |
|
119
|
|
|
$decoderContext = $this->options['decoder_context']; |
|
120
|
|
|
$proxyList = $this->contentsDecoder->decode($uriContents, $uriContentsFormat, $decoderContext); |
|
121
|
|
|
|
|
122
|
|
|
// TODO: would be safer to use a converter here which will explicitly convert decoded data to an array. |
|
123
|
|
|
// Such thing will depend on data provider and their APIs, for now this logic is pretty enough. |
|
124
|
|
|
|
|
125
|
|
|
if ($this->proxyCacher instanceof CacherInterface) { |
|
126
|
|
|
$this->proxyCacher->save($proxyList); |
|
127
|
|
|
} |
|
128
|
|
|
|
|
129
|
|
|
return $proxyList; |
|
130
|
|
|
} |
|
131
|
|
|
|
|
132
|
|
|
/** |
|
133
|
|
|
* Sets a proxy list cacher |
|
134
|
|
|
* |
|
135
|
|
|
* @param CacherInterface $proxyCacher Saves a proxy list in the cache and invalidates it by demand |
|
136
|
|
|
* |
|
137
|
|
|
* @return void |
|
138
|
|
|
*/ |
|
139
|
|
|
public function setCacher(CacherInterface $proxyCacher): void |
|
140
|
|
|
{ |
|
141
|
|
|
$this->proxyCacher = $proxyCacher; |
|
142
|
|
|
} |
|
143
|
|
|
|
|
144
|
|
|
/** |
|
145
|
|
|
* Configures URI proxy locator options |
|
146
|
|
|
* |
|
147
|
|
|
* @param OptionsResolver $optionsResolver Validates options and merges them with default values |
|
148
|
|
|
* |
|
149
|
|
|
* @return void |
|
150
|
|
|
*/ |
|
151
|
|
|
protected function configureOptions(OptionsResolver $optionsResolver): void |
|
152
|
|
|
{ |
|
153
|
|
|
$optionsResolver->setDefaults( |
|
154
|
|
|
[ |
|
155
|
|
|
'uri' => null, |
|
156
|
|
|
'format' => null, |
|
157
|
|
|
'decoder_context' => [], |
|
158
|
|
|
] |
|
159
|
|
|
); |
|
160
|
|
|
|
|
161
|
|
|
$optionsResolver->setAllowedTypes('uri', ['string']); |
|
162
|
|
|
$optionsResolver->setAllowedTypes('decoder_context', ['array']); |
|
163
|
|
|
$optionsResolver->setRequired(['uri', 'format']); |
|
164
|
|
|
} |
|
165
|
|
|
} |
|
166
|
|
|
|
symfony-doge /
veslo
Loading history...