|
1
|
|
|
<?php |
|
2
|
|
|
declare(strict_types=1); |
|
3
|
|
|
namespace Hyphper\Frame; |
|
4
|
|
|
|
|
5
|
|
|
use Hyphper\Frame\Exception\InvalidFrameException; |
|
6
|
|
|
|
|
7
|
|
|
/** |
|
8
|
|
|
* The RST_STREAM frame allows for abnormal termination of a stream. When sent |
|
9
|
|
|
* by the initiator of a stream, it indicates that they wish to cancel the |
|
10
|
|
|
* stream or that an error condition has occurred. When sent by the receiver |
|
11
|
|
|
* of a stream, it indicates that either the receiver is rejecting the stream, |
|
12
|
|
|
* requesting that the stream be cancelled or that an error condition has |
|
13
|
|
|
* occurred. |
|
14
|
|
|
* |
|
15
|
|
|
* @package Hyphper\Frame |
|
16
|
|
|
*/ |
|
17
|
|
|
class RstStreamFrame extends \Hyphper\Frame |
|
18
|
|
|
{ |
|
19
|
|
|
protected $defined_flags = []; |
|
20
|
|
|
protected $type = 0x03; |
|
21
|
|
|
protected $stream_association = self::HAS_STREAM; |
|
22
|
|
|
protected $error_code; |
|
23
|
|
|
|
|
24
|
|
|
/** |
|
25
|
|
|
* RstStreamFrame constructor. |
|
26
|
|
|
* |
|
27
|
|
|
* @param array $options |
|
28
|
|
|
*/ |
|
29
|
5 |
|
public function __construct(array $options = []) |
|
30
|
|
|
{ |
|
31
|
5 |
|
parent::__construct($options); |
|
32
|
4 |
|
$this->error_code = (int) ($options['error_code'] ?? null); |
|
33
|
4 |
|
} |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* @return string |
|
37
|
|
|
*/ |
|
38
|
1 |
|
public function serializeBody(): string |
|
39
|
|
|
{ |
|
40
|
1 |
|
return pack('N', $this->error_code); |
|
41
|
|
|
} |
|
42
|
|
|
|
|
43
|
|
|
/** |
|
44
|
|
|
* Given the body of a frame, parses it into frame data. This populates |
|
45
|
|
|
* the non-header parts of the frame: that is, it does not populate the |
|
46
|
|
|
* stream ID or flags. |
|
47
|
|
|
* |
|
48
|
|
|
* |
|
49
|
|
|
* @param string $data |
|
50
|
|
|
* |
|
51
|
|
|
* @return void |
|
52
|
|
|
*/ |
|
53
|
2 |
|
public function parseBody(string $data) |
|
54
|
|
|
{ |
|
55
|
2 |
|
if (strlen($data) != 4) { |
|
56
|
1 |
|
throw new InvalidFrameException(sprintf( |
|
57
|
1 |
|
"RST_STREAM must have 4 byte body: actual length %s.", |
|
58
|
|
|
strlen($data) |
|
59
|
|
|
)); |
|
60
|
|
|
} |
|
61
|
|
|
|
|
62
|
1 |
|
if (!$unpack = @unpack('Nerror_code', $data)) { |
|
63
|
|
|
throw new InvalidFrameException('Invalid RST_STREAM body'); |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
1 |
|
$this->error_code = $unpack['error_code']; |
|
67
|
1 |
|
$this->body_len = strlen($data); |
|
68
|
1 |
|
} |
|
69
|
|
|
|
|
70
|
|
|
/** |
|
71
|
|
|
* @return int |
|
72
|
|
|
*/ |
|
73
|
1 |
|
public function getErrorCode() |
|
74
|
|
|
{ |
|
75
|
1 |
|
return $this->error_code; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* @param int $error_code |
|
80
|
|
|
* @return RstStreamFrame |
|
81
|
|
|
*/ |
|
82
|
1 |
|
public function setErrorCode($error_code) |
|
83
|
|
|
{ |
|
84
|
1 |
|
$this->error_code = $error_code; |
|
85
|
1 |
|
return $this; |
|
86
|
|
|
} |
|
87
|
|
|
} |
|
88
|
|
|
|
hyphper /
h2-frame
