|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace BitWasp\Bitcoin\Networking\Serializer\Structure; |
|
4
|
|
|
|
|
5
|
|
|
use BitWasp\Bitcoin\Networking\Structure\Header; |
|
6
|
|
|
use BitWasp\Bitcoin\Serializer\Types; |
|
7
|
|
|
use BitWasp\Buffertools\Buffer; |
|
8
|
|
|
use BitWasp\Buffertools\BufferInterface; |
|
9
|
|
|
use BitWasp\Buffertools\Parser; |
|
10
|
|
|
|
|
11
|
|
|
class HeaderSerializer |
|
12
|
|
|
{ |
|
13
|
|
|
/** |
|
14
|
|
|
* @var \BitWasp\Buffertools\Types\ByteString |
|
15
|
|
|
*/ |
|
16
|
|
|
private $bytestring12; |
|
17
|
|
|
|
|
18
|
|
|
/** |
|
19
|
|
|
* @var \BitWasp\Buffertools\Types\ByteString |
|
20
|
|
|
*/ |
|
21
|
|
|
private $bytestring4; |
|
22
|
|
|
|
|
23
|
|
|
/** |
|
24
|
|
|
* @var \BitWasp\Buffertools\Types\Uint32 |
|
25
|
|
|
*/ |
|
26
|
|
|
private $uint32; |
|
27
|
|
|
|
|
28
|
96 |
|
public function __construct() |
|
29
|
|
|
{ |
|
30
|
96 |
|
$this->bytestring12 = Types::bytestring(12); |
|
31
|
96 |
|
$this->bytestring4 = Types::bytestring(4); |
|
32
|
96 |
|
$this->uint32 = Types::uint32le(); |
|
33
|
96 |
|
} |
|
34
|
|
|
|
|
35
|
|
|
/** |
|
36
|
|
|
* @param Header $header |
|
37
|
|
|
* @return Buffer |
|
38
|
|
|
*/ |
|
39
|
93 |
|
public function serialize(Header $header) |
|
40
|
|
|
{ |
|
41
|
93 |
|
$command = new Buffer(str_pad($header->getCommand(), 12, "\x00", STR_PAD_RIGHT)); |
|
42
|
|
|
|
|
43
|
93 |
|
return new Buffer( |
|
44
|
93 |
|
$this->bytestring12->write($command). |
|
45
|
93 |
|
$this->uint32->write($header->getLength()). |
|
46
|
93 |
|
$this->bytestring4->write($header->getChecksum()) |
|
47
|
31 |
|
); |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* @param string|BufferInterface $data |
|
52
|
|
|
* @return Header |
|
53
|
|
|
*/ |
|
54
|
|
|
public function parse($data) |
|
55
|
|
|
{ |
|
56
|
|
|
return $this->fromParser(new Parser($data)); |
|
57
|
|
|
} |
|
58
|
|
|
|
|
59
|
|
|
/** |
|
60
|
|
|
* @param Parser $parser |
|
61
|
|
|
* @return Header |
|
62
|
|
|
*/ |
|
63
|
87 |
|
public function fromParser(Parser $parser) |
|
64
|
|
|
{ |
|
65
|
87 |
|
return new Header( |
|
66
|
87 |
|
trim($this->bytestring12->read($parser)->getBinary()), |
|
67
|
87 |
|
$this->uint32->read($parser), |
|
68
|
87 |
|
$this->bytestring4->read($parser) |
|
69
|
29 |
|
); |
|
70
|
|
|
} |
|
71
|
|
|
} |
|
72
|
|
|
|
Bit-Wasp /
bitcoin-p2p-php
