|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace BitWasp\Bitcoin\Script\Factory; |
|
4
|
|
|
|
|
5
|
|
|
use BitWasp\Bitcoin\Address\AddressInterface; |
|
6
|
|
|
use BitWasp\Bitcoin\Address\ScriptHashAddress; |
|
7
|
|
|
use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PublicKeyInterface; |
|
8
|
|
|
use BitWasp\Bitcoin\Script\Opcodes; |
|
9
|
|
|
use BitWasp\Bitcoin\Script\ScriptFactory; |
|
10
|
|
|
use BitWasp\Bitcoin\Script\ScriptInterface; |
|
11
|
|
|
use BitWasp\Buffertools\BufferInterface; |
|
12
|
|
|
use BitWasp\Buffertools\Buffertools; |
|
13
|
|
|
|
|
14
|
|
|
class OutputScriptFactory |
|
15
|
|
|
{ |
|
16
|
|
|
/** |
|
17
|
|
|
* @param AddressInterface $address |
|
18
|
|
|
* @return ScriptInterface |
|
19
|
|
|
*/ |
|
20
|
96 |
|
public function payToAddress(AddressInterface $address) |
|
21
|
|
|
{ |
|
22
|
64 |
|
return $address instanceof ScriptHashAddress |
|
23
|
40 |
|
? ScriptFactory::sequence([Opcodes::OP_HASH160, $address->getHash(), Opcodes::OP_EQUAL]) |
|
24
|
96 |
|
: ScriptFactory::sequence([Opcodes::OP_DUP, Opcodes::OP_HASH160, $address->getHash(), Opcodes::OP_EQUALVERIFY, Opcodes::OP_CHECKSIG]); |
|
25
|
|
|
} |
|
26
|
|
|
|
|
27
|
|
|
/** |
|
28
|
|
|
* Create a Pay to pubkey output |
|
29
|
|
|
* |
|
30
|
|
|
* @param PublicKeyInterface $publicKey |
|
31
|
|
|
* @return ScriptInterface |
|
32
|
|
|
*/ |
|
33
|
30 |
|
public function payToPubKey(PublicKeyInterface $publicKey) |
|
34
|
|
|
{ |
|
35
|
30 |
|
return ScriptFactory::sequence([$publicKey->getBuffer(), Opcodes::OP_CHECKSIG]); |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
/** |
|
39
|
|
|
* Create a P2PKH output script |
|
40
|
|
|
* |
|
41
|
|
|
* @param BufferInterface $pubKeyHash |
|
42
|
|
|
* @return ScriptInterface |
|
43
|
|
|
*/ |
|
44
|
54 |
|
public function payToPubKeyHash(BufferInterface $pubKeyHash) |
|
45
|
|
|
{ |
|
46
|
54 |
|
if ($pubKeyHash->getSize() !== 20) { |
|
47
|
|
|
throw new \RuntimeException('Public key hash must be exactly 20 bytes'); |
|
48
|
|
|
} |
|
49
|
|
|
|
|
50
|
54 |
|
return ScriptFactory::sequence([Opcodes::OP_DUP, Opcodes::OP_HASH160, $pubKeyHash, Opcodes::OP_EQUALVERIFY, Opcodes::OP_CHECKSIG]); |
|
51
|
|
|
} |
|
52
|
|
|
|
|
53
|
|
|
/** |
|
54
|
|
|
/** |
|
55
|
|
|
* Create a P2SH output script |
|
56
|
|
|
* |
|
57
|
|
|
* @param BufferInterface $scriptHash |
|
58
|
|
|
* @return ScriptInterface |
|
59
|
|
|
*/ |
|
60
|
84 |
|
public function payToScriptHash(BufferInterface $scriptHash) |
|
61
|
|
|
{ |
|
62
|
84 |
|
if ($scriptHash->getSize() !== 20) { |
|
63
|
|
|
throw new \RuntimeException('P2SH scriptHash must be exactly 20 bytes'); |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
84 |
|
return ScriptFactory::sequence([Opcodes::OP_HASH160, $scriptHash, Opcodes::OP_EQUAL]); |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
/** |
|
70
|
|
|
* @param int $m |
|
71
|
|
|
* @param PublicKeyInterface[] $keys |
|
72
|
|
|
* @param bool|true $sort |
|
73
|
|
|
* @return ScriptInterface |
|
74
|
|
|
*/ |
|
75
|
72 |
|
public function multisig($m, array $keys = [], $sort = true) |
|
76
|
|
|
{ |
|
77
|
72 |
|
$n = count($keys); |
|
78
|
72 |
|
if ($m < 0) { |
|
79
|
|
|
throw new \LogicException('Number of signatures cannot be less than zero'); |
|
80
|
|
|
} |
|
81
|
|
|
|
|
82
|
72 |
|
if ($m > $n) { |
|
83
|
|
|
throw new \LogicException('Required number of sigs exceeds number of public keys'); |
|
84
|
|
|
} |
|
85
|
|
|
|
|
86
|
72 |
|
if ($n > 20) { |
|
87
|
|
|
throw new \LogicException('Number of public keys is greater than 16'); |
|
88
|
|
|
} |
|
89
|
|
|
|
|
90
|
72 |
|
if ($sort) { |
|
91
|
36 |
|
$keys = Buffertools::sort($keys); |
|
92
|
12 |
|
} |
|
93
|
|
|
|
|
94
|
72 |
|
$new = ScriptFactory::create(); |
|
95
|
72 |
|
$new->int($m); |
|
96
|
72 |
|
foreach ($keys as $key) { |
|
97
|
72 |
|
if (!$key instanceof PublicKeyInterface) { |
|
98
|
|
|
throw new \LogicException('Values in $keys[] must be a PublicKey'); |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
72 |
|
$new->push($key->getBuffer()); |
|
102
|
24 |
|
} |
|
103
|
|
|
|
|
104
|
72 |
|
return $new->int($n)->op('OP_CHECKMULTISIG')->getScript(); |
|
105
|
|
|
} |
|
106
|
|
|
|
|
107
|
|
|
/** |
|
108
|
|
|
* @param BufferInterface $keyHash |
|
109
|
|
|
* @return ScriptInterface |
|
110
|
|
|
*/ |
|
111
|
|
|
public function witnessKeyHash(BufferInterface $keyHash) |
|
112
|
|
|
{ |
|
113
|
|
|
if ($keyHash->getSize() !== 20) { |
|
114
|
|
|
throw new \RuntimeException('witness key-hash should be 20 bytes'); |
|
115
|
|
|
} |
|
116
|
|
|
|
|
117
|
|
|
return ScriptFactory::sequence([Opcodes::OP_0, $keyHash]); |
|
118
|
|
|
} |
|
119
|
|
|
|
|
120
|
|
|
/** |
|
121
|
|
|
* @param BufferInterface $scriptHash |
|
122
|
|
|
* @return ScriptInterface |
|
123
|
|
|
*/ |
|
124
|
|
|
public function witnessScriptHash(BufferInterface $scriptHash) |
|
125
|
|
|
{ |
|
126
|
|
|
if ($scriptHash->getSize() !== 32) { |
|
127
|
|
|
throw new \RuntimeException('witness script-hash should be 32 bytes'); |
|
128
|
|
|
} |
|
129
|
|
|
|
|
130
|
|
|
return ScriptFactory::sequence([Opcodes::OP_0, $scriptHash]); |
|
131
|
|
|
} |
|
132
|
|
|
} |
|
133
|
|
|
|
Bit-Wasp /
bitcoin-php
