|
1
|
|
|
<?php |
|
2
|
|
|
/** |
|
3
|
|
|
* vipnytt/RobotsTxtParser |
|
4
|
|
|
* |
|
5
|
|
|
* @link https://github.com/VIPnytt/RobotsTxtParser |
|
6
|
|
|
* @license https://github.com/VIPnytt/RobotsTxtParser/blob/master/LICENSE The MIT License (MIT) |
|
7
|
|
|
*/ |
|
8
|
|
|
|
|
9
|
|
|
namespace vipnytt\RobotsTxtParser\Client\Directives; |
|
10
|
|
|
|
|
11
|
|
|
use vipnytt\RobotsTxtParser\Handler\Directives\SubDirectiveHandler; |
|
12
|
|
|
use vipnytt\RobotsTxtParser\Parser\StatusCodeParser; |
|
13
|
|
|
use vipnytt\RobotsTxtParser\Parser\UriParser; |
|
14
|
|
|
use vipnytt\RobotsTxtParser\RobotsTxtInterface; |
|
15
|
|
|
|
|
16
|
|
|
/** |
|
17
|
|
|
* Class UserAgentTools |
|
18
|
|
|
* |
|
19
|
|
|
* @package vipnytt\RobotsTxtParser\Client\Directives |
|
20
|
|
|
*/ |
|
21
|
|
|
class UserAgentTools implements RobotsTxtInterface |
|
22
|
|
|
{ |
|
23
|
|
|
/** |
|
24
|
|
|
* Rules |
|
25
|
|
|
* @var SubDirectiveHandler |
|
26
|
|
|
*/ |
|
27
|
|
|
protected $handler; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* Base uri |
|
31
|
|
|
* @var string |
|
32
|
|
|
*/ |
|
33
|
|
|
private $base; |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* Status code |
|
37
|
|
|
* @var int|null |
|
38
|
|
|
*/ |
|
39
|
|
|
private $statusCode; |
|
40
|
|
|
|
|
41
|
|
|
/** |
|
42
|
|
|
* DisAllowClient constructor. |
|
43
|
|
|
* |
|
44
|
|
|
* @param SubDirectiveHandler $handler |
|
45
|
|
|
* @param string $base |
|
46
|
|
|
* @param int|null $statusCode |
|
47
|
|
|
*/ |
|
48
|
|
|
public function __construct(SubDirectiveHandler $handler, $base, $statusCode = null) |
|
49
|
|
|
{ |
|
50
|
|
|
$this->handler = $handler; |
|
51
|
|
|
$this->base = $base; |
|
52
|
|
|
$this->statusCode = $statusCode; |
|
53
|
|
|
} |
|
54
|
|
|
|
|
55
|
|
|
/** |
|
56
|
|
|
* Check if URI is allowed to crawl |
|
57
|
|
|
* |
|
58
|
|
|
* @param string $uri |
|
59
|
|
|
* @return bool |
|
60
|
|
|
*/ |
|
61
|
|
|
public function isAllowed($uri) |
|
62
|
|
|
{ |
|
63
|
|
|
return $this->check(self::DIRECTIVE_ALLOW, $uri); |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
|
|
/** |
|
67
|
|
|
* Check |
|
68
|
|
|
* |
|
69
|
|
|
* @param string $directive |
|
70
|
|
|
* @param string $uri |
|
71
|
|
|
* @return bool |
|
72
|
|
|
* @throws \InvalidArgumentException |
|
73
|
|
|
*/ |
|
74
|
|
|
private function check($directive, $uri) |
|
75
|
|
|
{ |
|
76
|
|
|
$uriParser = new UriParser($uri); |
|
77
|
|
|
$uri = $uriParser->convertToFull($this->base); |
|
78
|
|
|
if ($this->base !== $uriParser->base()) { |
|
79
|
|
|
throw new \InvalidArgumentException('URI belongs to a different robots.txt'); |
|
80
|
|
|
} |
|
81
|
|
|
if (($result = $this->checkOverride($uri)) !== false) { |
|
82
|
|
|
return $directive === $result; |
|
83
|
|
|
} |
|
84
|
|
|
// Path check |
|
85
|
|
|
return $this->checkPath($directive, $uri); |
|
86
|
|
|
} |
|
87
|
|
|
|
|
88
|
|
|
/** |
|
89
|
|
|
* Check for overrides |
|
90
|
|
|
* |
|
91
|
|
|
* @param string $uri |
|
92
|
|
|
* @return string|false |
|
93
|
|
|
*/ |
|
94
|
|
|
private function checkOverride($uri) |
|
95
|
|
|
{ |
|
96
|
|
|
// 1st priority: /robots.txt is permanent allowed |
|
97
|
|
|
if (parse_url($uri, PHP_URL_PATH) === self::PATH) { |
|
98
|
|
|
return self::DIRECTIVE_ALLOW; |
|
99
|
|
|
} |
|
100
|
|
|
// 2st priority: Status code rules |
|
101
|
|
|
$statusCodeParser = new StatusCodeParser($this->statusCode, parse_url($this->base, PHP_URL_SCHEME)); |
|
102
|
|
|
if (($result = $statusCodeParser->accessOverride()) !== false) { |
|
103
|
|
|
return $result; |
|
104
|
|
|
} |
|
105
|
|
|
// 3rd priority: Visit times |
|
106
|
|
|
if ($this->handler->visitTime->client()->isVisitTime() === false) { |
|
107
|
|
|
return self::DIRECTIVE_DISALLOW; |
|
108
|
|
|
} |
|
109
|
|
|
return false; |
|
110
|
|
|
} |
|
111
|
|
|
|
|
112
|
|
|
/** |
|
113
|
|
|
* Check path |
|
114
|
|
|
* |
|
115
|
|
|
* @param string $directive |
|
116
|
|
|
* @param string $uri |
|
117
|
|
|
* @return bool |
|
118
|
|
|
*/ |
|
119
|
|
|
private function checkPath($directive, $uri) |
|
120
|
|
|
{ |
|
121
|
|
|
$resultLength = 0; |
|
122
|
|
|
$resultDirective = self::DIRECTIVE_ALLOW; |
|
123
|
|
|
foreach ([ |
|
124
|
|
|
self::DIRECTIVE_DISALLOW => mb_strlen($this->handler->disallow->client()->isCovered($uri)), |
|
125
|
|
|
self::DIRECTIVE_ALLOW => mb_strlen($this->handler->allow->client()->isCovered($uri)), |
|
126
|
|
|
] as $currentDirective => $currentLength) { |
|
127
|
|
|
if ($currentLength >= $resultLength) { |
|
128
|
|
|
$resultLength = $currentLength; |
|
129
|
|
|
$resultDirective = $currentDirective; |
|
130
|
|
|
} |
|
131
|
|
|
} |
|
132
|
|
|
return $directive === $resultDirective; |
|
133
|
|
|
} |
|
134
|
|
|
|
|
135
|
|
|
/** |
|
136
|
|
|
* Check if URI is disallowed to crawl |
|
137
|
|
|
* |
|
138
|
|
|
* @param string $uri |
|
139
|
|
|
* @return bool |
|
140
|
|
|
*/ |
|
141
|
|
|
public function isDisallowed($uri) |
|
142
|
|
|
{ |
|
143
|
|
|
return $this->check(self::DIRECTIVE_DISALLOW, $uri); |
|
144
|
|
|
} |
|
145
|
|
|
|
|
146
|
|
|
/** |
|
147
|
|
|
* Rule export |
|
148
|
|
|
* |
|
149
|
|
|
* @return array |
|
150
|
|
|
*/ |
|
151
|
|
|
public function export() |
|
152
|
|
|
{ |
|
153
|
|
|
return [ |
|
154
|
|
|
self::DIRECTIVE_ROBOT_VERSION => $this->handler->robotVersion->client()->export(), |
|
155
|
|
|
self::DIRECTIVE_VISIT_TIME => $this->handler->visitTime->client()->export(), |
|
156
|
|
|
self::DIRECTIVE_NO_INDEX => $this->handler->noIndex->client()->export(), |
|
157
|
|
|
self::DIRECTIVE_DISALLOW => $this->handler->disallow->client()->export(), |
|
158
|
|
|
self::DIRECTIVE_ALLOW => $this->handler->allow->client()->export(), |
|
159
|
|
|
self::DIRECTIVE_CRAWL_DELAY => $this->handler->crawlDelay->client()->export(), |
|
160
|
|
|
self::DIRECTIVE_CACHE_DELAY => $this->handler->cacheDelay->client()->export(), |
|
161
|
|
|
self::DIRECTIVE_REQUEST_RATE => $this->handler->requestRate->client()->export(), |
|
162
|
|
|
self::DIRECTIVE_COMMENT => $this->handler->comment->client()->export(), |
|
163
|
|
|
]; |
|
164
|
|
|
} |
|
165
|
|
|
|
|
166
|
|
|
/** |
|
167
|
|
|
* Get rule set group name |
|
168
|
|
|
* |
|
169
|
|
|
* @return string |
|
170
|
|
|
*/ |
|
171
|
|
|
public function getUserAgentGroup() |
|
172
|
|
|
{ |
|
173
|
|
|
return $this->handler->group; |
|
174
|
|
|
} |
|
175
|
|
|
} |
|
176
|
|
|
|
VIPnytt /
RobotsTxtParser
