|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
namespace Hyphper\Frame; |
|
4
|
|
|
|
|
5
|
|
|
use Hyphper\Frame\Exception\InvalidPaddingException; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* The HEADERS frame carries name-value pairs. It is used to open a stream. |
|
9
|
|
|
* HEADERS frames can be sent on a stream in the "open" or "half closed |
|
10
|
|
|
* (remote)" states. |
|
11
|
|
|
* |
|
12
|
|
|
* The HeadersFrame class is actually basically a data frame in this |
|
13
|
|
|
* implementation, because of the requirement to control the sizes of frames. |
|
14
|
|
|
* A header block fragment that doesn't fit in an entire HEADERS frame needs |
|
15
|
|
|
* to be followed with CONTINUATION frames. From the perspective of the frame |
|
16
|
|
|
* building code the header block is an opaque data segment. |
|
17
|
|
|
* |
|
18
|
|
|
* @package Hyphper\Frame |
|
19
|
|
|
*/ |
|
20
|
|
|
class HeadersFrame extends \Hyphper\Frame implements PaddingInterface, PriorityInterface |
|
21
|
|
|
{ |
|
22
|
|
|
use PaddingTrait, PriorityTrait; |
|
23
|
|
|
|
|
24
|
|
|
protected $defined_flags = [ |
|
25
|
|
|
Flag::END_STREAM, |
|
26
|
|
|
Flag::END_HEADERS, |
|
27
|
|
|
Flag::PADDED, |
|
28
|
|
|
Flag::PRIORITY |
|
29
|
|
|
]; |
|
30
|
|
|
|
|
31
|
|
|
protected $type = 0x01; |
|
32
|
|
|
|
|
33
|
|
|
protected $stream_association = self::HAS_STREAM; |
|
34
|
|
|
protected $data; |
|
35
|
|
|
|
|
36
|
|
|
|
|
37
|
|
|
|
|
38
|
7 |
|
public function __construct(array $options = []) |
|
39
|
|
|
{ |
|
40
|
7 |
|
parent::__construct($options); |
|
41
|
|
|
|
|
42
|
7 |
|
$this->data = $options['data'] ?? ''; |
|
43
|
7 |
|
} |
|
44
|
|
|
|
|
45
|
3 |
|
public function serializeBody(): string |
|
46
|
|
|
{ |
|
47
|
3 |
|
$padding_data = $this->serializePaddingData(); |
|
48
|
3 |
|
$padding = ''; |
|
49
|
3 |
|
if ($this->padding_length) { |
|
50
|
|
|
$padding = str_repeat("\0", $this->padding_length); |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
3 |
|
$priority_data = ''; |
|
54
|
3 |
|
if ($this->flags->hasFlag(Flag::PRIORITY)) { |
|
55
|
1 |
|
$priority_data = $this->serializePriorityData(); |
|
56
|
|
|
} |
|
57
|
|
|
|
|
58
|
3 |
|
return $padding_data . $priority_data . $this->data . $padding; |
|
59
|
|
|
} |
|
60
|
|
|
|
|
61
|
|
|
/** |
|
62
|
|
|
* Given the body of a frame, parses it into frame data. This populates |
|
63
|
|
|
* the non-header parts of the frame: that is, it does not populate the |
|
64
|
|
|
* stream ID or flags. |
|
65
|
|
|
* |
|
66
|
|
|
* |
|
67
|
|
|
* @param string $data |
|
68
|
|
|
* |
|
69
|
|
|
* @return void |
|
70
|
|
|
*/ |
|
71
|
4 |
|
public function parseBody(string $data) |
|
72
|
|
|
{ |
|
73
|
4 |
|
$padding_data_length = $this->parsePaddingData($data); |
|
74
|
4 |
|
$data = substr($data, $padding_data_length); |
|
75
|
|
|
|
|
76
|
4 |
|
$priority_data_length = 0; |
|
77
|
4 |
|
if ($this->flags->hasFlag(Flag::PRIORITY)) { |
|
78
|
1 |
|
$priority_data_length = $this->parsePriorityData($data); |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
4 |
|
$this->body_len = strlen($data); |
|
82
|
4 |
|
$this->data = substr($data, $priority_data_length, strlen($data) - $this->padding_length); |
|
83
|
|
|
|
|
84
|
4 |
|
if ($this->padding_length && $this->padding_length >= $this->body_len) { |
|
85
|
1 |
|
throw new InvalidPaddingException('Padding is too long'); |
|
86
|
|
|
} |
|
87
|
3 |
|
} |
|
88
|
|
|
|
|
89
|
|
|
/** |
|
90
|
|
|
* @param mixed|string $data |
|
91
|
|
|
* |
|
92
|
|
|
* @return HeadersFrame |
|
93
|
|
|
*/ |
|
94
|
3 |
|
public function setData($data) |
|
95
|
|
|
{ |
|
96
|
3 |
|
$this->data = $data; |
|
97
|
|
|
|
|
98
|
3 |
|
return $this; |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
|
|
/** |
|
102
|
|
|
* @return mixed|string |
|
103
|
|
|
*/ |
|
104
|
3 |
|
public function getData() |
|
105
|
|
|
{ |
|
106
|
3 |
|
return $this->data; |
|
107
|
|
|
} |
|
108
|
|
|
} |
|
109
|
|
|
|
hyphper /
h2-frame
