|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
declare(strict_types=1); |
|
4
|
|
|
|
|
5
|
|
|
/* |
|
6
|
|
|
* This file is part of Badcow DNS Library. |
|
7
|
|
|
* |
|
8
|
|
|
* (c) Samuel Williams <[email protected]> |
|
9
|
|
|
* |
|
10
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
11
|
|
|
* file that was distributed with this source code. |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
namespace Badcow\DNS; |
|
15
|
|
|
|
|
16
|
|
|
use Badcow\DNS\Rdata\RdataTrait; |
|
17
|
|
|
use Badcow\DNS\Rdata\Types; |
|
18
|
|
|
use Badcow\DNS\Rdata\UnsupportedTypeException; |
|
19
|
|
|
use InvalidArgumentException; |
|
20
|
|
|
use UnexpectedValueException; |
|
21
|
|
|
|
|
22
|
|
|
class Question |
|
23
|
|
|
{ |
|
24
|
|
|
/** |
|
25
|
|
|
* @var string |
|
26
|
|
|
*/ |
|
27
|
|
|
private $name; |
|
28
|
|
|
|
|
29
|
|
|
/** |
|
30
|
|
|
* @var int |
|
31
|
|
|
*/ |
|
32
|
|
|
private $typeCode; |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* @var int |
|
36
|
|
|
*/ |
|
37
|
|
|
private $classId; |
|
38
|
|
|
|
|
39
|
|
|
/** |
|
40
|
|
|
* @return string |
|
41
|
|
|
*/ |
|
42
|
2 |
|
public function getName(): string |
|
43
|
|
|
{ |
|
44
|
2 |
|
return $this->name; |
|
45
|
|
|
} |
|
46
|
|
|
|
|
47
|
|
|
/** |
|
48
|
|
|
* @param string $name |
|
49
|
|
|
* |
|
50
|
|
|
* @throws InvalidArgumentException |
|
51
|
|
|
*/ |
|
52
|
8 |
|
public function setName($name): void |
|
53
|
|
|
{ |
|
54
|
8 |
|
if (!Validator::fullyQualifiedDomainName($name)) { |
|
55
|
|
|
throw new InvalidArgumentException(sprintf('"%s" is not a fully qualified domain name.', $name)); |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
8 |
|
$this->name = $name; |
|
59
|
8 |
|
} |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* @return int |
|
63
|
|
|
*/ |
|
64
|
2 |
|
public function getTypeCode(): int |
|
65
|
|
|
{ |
|
66
|
2 |
|
return $this->typeCode; |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
/** |
|
70
|
|
|
* @return string |
|
71
|
|
|
* |
|
72
|
|
|
* @throws UnsupportedTypeException |
|
73
|
|
|
*/ |
|
74
|
|
|
public function getType(): string |
|
75
|
|
|
{ |
|
76
|
|
|
return Types::getName($this->typeCode); |
|
77
|
|
|
} |
|
78
|
|
|
|
|
79
|
|
|
/** |
|
80
|
|
|
* @param string|int $typeCode |
|
81
|
|
|
* |
|
82
|
|
|
* @throws UnsupportedTypeException |
|
83
|
|
|
*/ |
|
84
|
8 |
|
public function setTypeCode($typeCode): void |
|
85
|
|
|
{ |
|
86
|
8 |
|
if (is_string($typeCode)) { |
|
87
|
|
|
$this->typeCode = Types::getTypeCode($typeCode); |
|
88
|
8 |
|
} elseif (is_int($typeCode)) { |
|
|
|
|
|
|
89
|
8 |
|
$this->typeCode = $typeCode; |
|
90
|
|
|
} else { |
|
91
|
|
|
throw new UnsupportedTypeException(sprintf('Library does not support type "%s".', $typeCode)); |
|
92
|
|
|
} |
|
93
|
8 |
|
} |
|
94
|
|
|
|
|
95
|
|
|
/** |
|
96
|
|
|
* @param string $type |
|
97
|
|
|
* |
|
98
|
|
|
* @throws UnsupportedTypeException |
|
99
|
|
|
*/ |
|
100
|
1 |
|
public function setType(string $type): void |
|
101
|
|
|
{ |
|
102
|
1 |
|
$this->setTypeCode(Types::getTypeCode($type)); |
|
103
|
1 |
|
} |
|
104
|
|
|
|
|
105
|
|
|
/** |
|
106
|
|
|
* @return int |
|
107
|
|
|
*/ |
|
108
|
2 |
|
public function getClassId(): int |
|
109
|
|
|
{ |
|
110
|
2 |
|
return $this->classId; |
|
111
|
|
|
} |
|
112
|
|
|
|
|
113
|
|
|
/** |
|
114
|
|
|
* @param string|int $classId |
|
115
|
|
|
* |
|
116
|
|
|
* @throws \InvalidArgumentException |
|
117
|
|
|
*/ |
|
118
|
8 |
|
public function setClass($classId): void |
|
119
|
|
|
{ |
|
120
|
8 |
|
if (is_string($classId)) { |
|
121
|
1 |
|
$this->classId = Classes::getClassId($classId); |
|
122
|
7 |
|
} elseif (Validator::isUnsignedInteger($classId, 16)) { |
|
123
|
7 |
|
$this->classId = $classId; |
|
124
|
|
|
} else { |
|
125
|
|
|
throw new InvalidArgumentException(sprintf('Invalid class: "%s".', $classId)); |
|
126
|
|
|
} |
|
127
|
8 |
|
} |
|
128
|
|
|
|
|
129
|
|
|
/** |
|
130
|
|
|
* @return string |
|
131
|
|
|
*/ |
|
132
|
3 |
|
public function toWire(): string |
|
133
|
|
|
{ |
|
134
|
3 |
|
return RdataTrait::encodeName($this->name).pack('nn', $this->typeCode, $this->classId); |
|
135
|
|
|
} |
|
136
|
|
|
|
|
137
|
|
|
/** |
|
138
|
|
|
* @param string $encoded |
|
139
|
|
|
* @param int $offset |
|
140
|
|
|
* |
|
141
|
|
|
* @return Question |
|
142
|
|
|
* |
|
143
|
|
|
* @throws UnexpectedValueException |
|
144
|
|
|
* @throws UnsupportedTypeException |
|
145
|
|
|
*/ |
|
146
|
7 |
|
public static function fromWire(string $encoded, int &$offset = 0): Question |
|
147
|
|
|
{ |
|
148
|
7 |
|
$question = new self(); |
|
149
|
7 |
|
$question->setName(RdataTrait::decodeName($encoded, $offset)); |
|
150
|
7 |
|
$integers = unpack('ntype/nclass', $encoded, $offset); |
|
151
|
7 |
|
$question->setTypeCode($integers['type']); |
|
152
|
7 |
|
$question->setClass($integers['class']); |
|
153
|
7 |
|
$offset += 4; |
|
154
|
|
|
|
|
155
|
7 |
|
return $question; |
|
156
|
|
|
} |
|
157
|
|
|
} |
|
158
|
|
|
|
Badcow /
DNS
Loading history...