Signer::setCheckerCreator() - Code Metrics - Inspection of "Allow custom Checker implementations" - Bit-Wasp/bitcoin-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( cc9f4e...3a552b )

by thomas

created 2018-01-07 00:09 UTC

Signer::setCheckerCreator() A

↳ Parent: Signer

Complexity

Conditions	2
Paths	2

Size

Total Lines	9
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	2.032

Importance

Changes

Metric	Value
cc	2
eloc	6
nc	2
nop	1
dl	0
loc	9
ccs	4
cts	5
cp	0.8
crap	2.032
rs	9.6666
c	0
b	0
f	0

<?php

declare(strict_types=1);

namespace BitWasp\Bitcoin\Transaction\Factory;

use BitWasp\Bitcoin\Bitcoin;
use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface;
use BitWasp\Bitcoin\Crypto\EcAdapter\EcSerializer;
use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PrivateKeyInterface;
use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PublicKeySerializerInterface;
use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Signature\DerSignatureSerializerInterface;
use BitWasp\Bitcoin\Exceptions\SignerException;
use BitWasp\Bitcoin\Serializer\Signature\TransactionSignatureSerializer;
use BitWasp\Bitcoin\Transaction\Factory\Checker\BitcoinCashCheckerCreator;
use BitWasp\Bitcoin\Transaction\Factory\Checker\CheckerCreator;
use BitWasp\Bitcoin\Transaction\Factory\Checker\CheckerCreatorBase;
use BitWasp\Bitcoin\Transaction\SignatureHash\SigHash;
use BitWasp\Bitcoin\Transaction\TransactionFactory;
use BitWasp\Bitcoin\Transaction\TransactionInterface;
use BitWasp\Bitcoin\Transaction\TransactionOutputInterface;

class Signer
{
    /**
     * @var EcAdapterInterface
     */
    private $ecAdapter;

    /**
     * @var TransactionInterface
     */
    private $tx;

    /**
     * @var TransactionSignatureSerializer
     */
    private $sigSerializer;

    /**
     * @var PublicKeySerializerInterface
     */
    private $pubKeySerializer;

    /**
     * @var bool
     */
    private $tolerateInvalidPublicKey = false;

    /**
     * @var bool
     */
    private $padUnsignedMultisigs = false;

    /**
     * @var bool
     */
    private $allowComplexScripts = false;

    /**
     * @var CheckerCreator
     */
    private $checkerCreator;

    /**
     * @var InputSignerInterface[]
     */
    private $signatureCreator = [];

    /**
     * TxWitnessSigner constructor.
     * @param TransactionInterface $tx
     * @param EcAdapterInterface $ecAdapter
     */
    public function __construct(TransactionInterface $tx, EcAdapterInterface $ecAdapter = null)
    {
        $this->tx = $tx;
        $this->ecAdapter = $ecAdapter ?: Bitcoin::getEcAdapter();
        $this->sigSerializer = new TransactionSignatureSerializer(EcSerializer::getSerializer(DerSignatureSerializerInterface::class, true, $this->ecAdapter));
        $this->pubKeySerializer = EcSerializer::getSerializer(PublicKeySerializerInterface::class, true, $this->ecAdapter);
        $this->checkerCreator = new CheckerCreator($this->ecAdapter, $this->sigSerializer, $this->pubKeySerializer);
    }

    /**
     * @return $this
     * @throws SignerException
     */
    public function redeemBitcoinCash()
    {
        $this->setCheckerCreator(new BitcoinCashCheckerCreator($this->ecAdapter, $this->sigSerializer, $this->pubKeySerializer));
        return $this;
    }

    /**
     * @param CheckerCreatorBase $checker
     * @return $this
     * @throws SignerException
     */
    public function setCheckerCreator(CheckerCreatorBase $checker)
    {
        if (empty($this->signatureCreator)) {
            $this->checkerCreator = $checker;
class Alien {}

class Dalek extends Alien {}

class Plot
{
    /** @var  Dalek */
    public $villain;
}

$alien = new Alien();
$plot = new Plot();
if ($alien instanceof Dalek) {
    $plot->villain = $alien;
}
            return $this;
        } else {
            throw new SignerException("Cannot change CheckerCreator after inputs have been parsed");
        }
    }

    /**
     * @param bool $setting
     * @return $this
     */
    public function padUnsignedMultisigs(bool $setting)
    {
        $this->padUnsignedMultisigs = $setting;
        return $this;
    }

    /**
     * @param bool $setting
     * @return $this
     */
    public function tolerateInvalidPublicKey(bool $setting)
    {
        $this->tolerateInvalidPublicKey = $setting;
        return $this;
    }

    /**
     * @param bool $setting
     * @return $this
     */
    public function allowComplexScripts(bool $setting)
    {
        $this->allowComplexScripts = $setting;
        return $this;
    }

    /**
     * @param int $nIn
     * @param PrivateKeyInterface $key
     * @param TransactionOutputInterface $txOut
     * @param SignData $signData
     * @param int $sigHashType
     * @return $this
     */
    public function sign(int $nIn, PrivateKeyInterface $key, TransactionOutputInterface $txOut, SignData $signData = null, int $sigHashType = SigHash::ALL)
    {
        $input = $this->input($nIn, $txOut, $signData);
        foreach ($input->getSteps() as $idx => $step) {
            $input->sign($key, $sigHashType);
        }

        return $this;
    }

    /**
     * @param int $nIn
     * @param TransactionOutputInterface $txOut
     * @param SignData|null $signData
     * @return InputSignerInterface
     */
    public function input(int $nIn, TransactionOutputInterface $txOut, SignData $signData = null): InputSignerInterface
    {
        if (null === $signData) {
            $signData = new SignData();
        }

        if (!isset($this->signatureCreator[$nIn])) {
            $checker = $this->checkerCreator->create($this->tx, $nIn, $txOut);
            $input = new InputSigner($this->ecAdapter, $this->tx, $nIn, $txOut, $signData, $checker, $this->sigSerializer, $this->pubKeySerializer);
            $input->padUnsignedMultisigs($this->padUnsignedMultisigs);
            $input->tolerateInvalidPublicKey($this->tolerateInvalidPublicKey);
            $input->allowComplexScripts($this->allowComplexScripts);
            $input->extract();

            $this->signatureCreator[$nIn] = $input;
        }

        return $this->signatureCreator[$nIn];
    }

    /**
     * @return TransactionInterface
     */
    public function get(): TransactionInterface
    {
        $mutable = TransactionFactory::mutate($this->tx);
        $witnesses = [];
        foreach ($mutable->inputsMutator() as $idx => $input) {
            if (isset($this->signatureCreator[$idx])) {
                $sig = $this->signatureCreator[$idx]->serializeSignatures();
                $input->script($sig->getScriptSig());
                $witnesses[$idx] = $sig->getScriptWitness();
            }
        }

        if (count($witnesses) > 0) {
            $mutable->witness($witnesses);
        }

        return $mutable->done();
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace BitWasp\Bitcoin\Transaction\Factory;
6
7		use BitWasp\Bitcoin\Bitcoin;
8		use BitWasp\Bitcoin\Crypto\EcAdapter\Adapter\EcAdapterInterface;
9		use BitWasp\Bitcoin\Crypto\EcAdapter\EcSerializer;
10		use BitWasp\Bitcoin\Crypto\EcAdapter\Key\PrivateKeyInterface;
11		use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Key\PublicKeySerializerInterface;
12		use BitWasp\Bitcoin\Crypto\EcAdapter\Serializer\Signature\DerSignatureSerializerInterface;
13		use BitWasp\Bitcoin\Exceptions\SignerException;
14		use BitWasp\Bitcoin\Serializer\Signature\TransactionSignatureSerializer;
15		use BitWasp\Bitcoin\Transaction\Factory\Checker\BitcoinCashCheckerCreator;
16		use BitWasp\Bitcoin\Transaction\Factory\Checker\CheckerCreator;
17		use BitWasp\Bitcoin\Transaction\Factory\Checker\CheckerCreatorBase;
18		use BitWasp\Bitcoin\Transaction\SignatureHash\SigHash;
19		use BitWasp\Bitcoin\Transaction\TransactionFactory;
20		use BitWasp\Bitcoin\Transaction\TransactionInterface;
21		use BitWasp\Bitcoin\Transaction\TransactionOutputInterface;
22
23		class Signer
24		{
25		/**
26		* @var EcAdapterInterface
27		*/
28		private $ecAdapter;
29
30		/**
31		* @var TransactionInterface
32		*/
33		private $tx;
34
35		/**
36		* @var TransactionSignatureSerializer
37		*/
38		private $sigSerializer;
39
40		/**
41		* @var PublicKeySerializerInterface
42		*/
43		private $pubKeySerializer;
44
45		/**
46		* @var bool
47		*/
48		private $tolerateInvalidPublicKey = false;
49
50		/**
51		* @var bool
52		*/
53		private $padUnsignedMultisigs = false;
54
55		/**
56		* @var bool
57		*/
58		private $allowComplexScripts = false;
59
60		/**
61		* @var CheckerCreator
62		*/
63		private $checkerCreator;
64
65		/**
66		* @var InputSignerInterface[]
67		*/
68		private $signatureCreator = [];
69
70		/**
71		* TxWitnessSigner constructor.
72		* @param TransactionInterface $tx
73		* @param EcAdapterInterface $ecAdapter
74		*/
75	109	public function __construct(TransactionInterface $tx, EcAdapterInterface $ecAdapter = null)
76		{
77	109	$this->tx = $tx;
78	109	$this->ecAdapter = $ecAdapter ?: Bitcoin::getEcAdapter();
79	109	$this->sigSerializer = new TransactionSignatureSerializer(EcSerializer::getSerializer(DerSignatureSerializerInterface::class, true, $this->ecAdapter));
80	109	$this->pubKeySerializer = EcSerializer::getSerializer(PublicKeySerializerInterface::class, true, $this->ecAdapter);
81	109	$this->checkerCreator = new CheckerCreator($this->ecAdapter, $this->sigSerializer, $this->pubKeySerializer);
82	109	}
83
84		/**
85		* @return $this
86		* @throws SignerException
87		*/
88	1	public function redeemBitcoinCash()
89		{
90	1	$this->setCheckerCreator(new BitcoinCashCheckerCreator($this->ecAdapter, $this->sigSerializer, $this->pubKeySerializer));
91	1	return $this;
92		}
93
94		/**
95		* @param CheckerCreatorBase $checker
96		* @return $this
97		* @throws SignerException
98		*/
99	1	public function setCheckerCreator(CheckerCreatorBase $checker)
100		{
101	1	if (empty($this->signatureCreator)) {
102	1	$this->checkerCreator = $checker;
		0 ignored issues – show Documentation Bug introduced 2018-01-02 10:48 UTC by Report Bug Copy Issue Report `$checker` is of type `object<BitWasp\Bitcoin\T...ker\CheckerCreatorBase>`, but the property `$checkerCreator` was declared to be of type `object<BitWasp\Bitcoin\T...Checker\CheckerCreator>`. Are you sure that you always receive this specific sub-class here, or does it make sense to add an `instanceof` check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly. Either this assignment is in error or an instanceof check should be added for that assignment. class Alien {} class Dalek extends Alien {} class Plot { /** @var Dalek */ public $villain; } $alien = new Alien(); $plot = new Plot(); if ($alien instanceof Dalek) { $plot->villain = $alien; } Loading history...
103	1	return $this;
104		} else {
105		throw new SignerException("Cannot change CheckerCreator after inputs have been parsed");
106		}
107		}
108
109		/**
110		* @param bool $setting
111		* @return $this
112		*/
113	14	public function padUnsignedMultisigs(bool $setting)
114		{
115	14	$this->padUnsignedMultisigs = $setting;
116	14	return $this;
117		}
118
119		/**
120		* @param bool $setting
121		* @return $this
122		*/
123	2	public function tolerateInvalidPublicKey(bool $setting)
124		{
125	2	$this->tolerateInvalidPublicKey = $setting;
126	2	return $this;
127		}
128
129		/**
130		* @param bool $setting
131		* @return $this
132		*/
133	33	public function allowComplexScripts(bool $setting)
134		{
135	33	$this->allowComplexScripts = $setting;
136	33	return $this;
137		}
138
139		/**
140		* @param int $nIn
141		* @param PrivateKeyInterface $key
142		* @param TransactionOutputInterface $txOut
143		* @param SignData $signData
144		* @param int $sigHashType
145		* @return $this
146		*/
147	50	public function sign(int $nIn, PrivateKeyInterface $key, TransactionOutputInterface $txOut, SignData $signData = null, int $sigHashType = SigHash::ALL)
148		{
149	50	$input = $this->input($nIn, $txOut, $signData);
150	50	foreach ($input->getSteps() as $idx => $step) {
151	50	$input->sign($key, $sigHashType);
152		}
153
154	50	return $this;
155		}
156
157		/**
158		* @param int $nIn
159		* @param TransactionOutputInterface $txOut
160		* @param SignData\|null $signData
161		* @return InputSignerInterface
162		*/
163	108	public function input(int $nIn, TransactionOutputInterface $txOut, SignData $signData = null): InputSignerInterface
164		{
165	108	if (null === $signData) {
166	11	$signData = new SignData();
167		}
168
169	108	if (!isset($this->signatureCreator[$nIn])) {
170	108	$checker = $this->checkerCreator->create($this->tx, $nIn, $txOut);
171	108	$input = new InputSigner($this->ecAdapter, $this->tx, $nIn, $txOut, $signData, $checker, $this->sigSerializer, $this->pubKeySerializer);
172	108	$input->padUnsignedMultisigs($this->padUnsignedMultisigs);
173	108	$input->tolerateInvalidPublicKey($this->tolerateInvalidPublicKey);
174	108	$input->allowComplexScripts($this->allowComplexScripts);
175	108	$input->extract();
176
177	96	$this->signatureCreator[$nIn] = $input;
178		}
179
180	96	return $this->signatureCreator[$nIn];
181		}
182
183		/**
184		* @return TransactionInterface
185		*/
186	84	public function get(): TransactionInterface
187		{
188	84	$mutable = TransactionFactory::mutate($this->tx);
189	84	$witnesses = [];
190	84	foreach ($mutable->inputsMutator() as $idx => $input) {
191	84	if (isset($this->signatureCreator[$idx])) {
192	83	$sig = $this->signatureCreator[$idx]->serializeSignatures();
193	83	$input->script($sig->getScriptSig());
194	84	$witnesses[$idx] = $sig->getScriptWitness();
195		}
196		}
197
198	84	if (count($witnesses) > 0) {
199	83	$mutable->witness($witnesses);
200		}
201
202	84	return $mutable->done();
203		}
204		}
205

Bit-Wasp / bitcoin-php

Push — master ( cc9f4e...3a552b )

Signer::setCheckerCreator() A

Complexity

Size

Duplication

Code Coverage

Importance

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