Transaction::validator() - Code Metrics - Inspection of "Segwit h0" - Bit-Wasp/bitcoin-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#241)

by thomas

created 2016-02-03 14:27 UTC

Transaction::validator() A

↳ Parent: Transaction

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	4
rs	10
ccs	0
cts	0
cp	0
cc	1
eloc	2
nc	1
nop	0
crap	2

<?php

namespace BitWasp\Bitcoin\Transaction;

use BitWasp\Bitcoin\Bitcoin;
use BitWasp\Bitcoin\Collection\Transaction\TransactionInputCollection;
use BitWasp\Bitcoin\Collection\Transaction\TransactionOutputCollection;
use BitWasp\Bitcoin\Collection\Transaction\TransactionWitnessCollection;
use BitWasp\Bitcoin\Crypto\Hash;
use BitWasp\Bitcoin\Script\ScriptWitnessInterface;
use BitWasp\Bitcoin\Serializable;
use BitWasp\Bitcoin\Serializer\Transaction\NTransactionSerializer;
use BitWasp\Bitcoin\Serializer\Transaction\TransactionSerializer;
use BitWasp\Bitcoin\Serializer\Transaction\WitnessTransactionSerializer;
use BitWasp\Bitcoin\Transaction\SignatureHash\Hasher;
use BitWasp\Bitcoin\Utxo\Utxo;
use BitWasp\Buffertools\BufferInterface;
use BitWasp\CommonTrait\FunctionAliasArrayAccess;

class Transaction extends Serializable implements TransactionInterface
{
    use FunctionAliasArrayAccess;

    /**
     * @var int|string
     */
    private $version;

    /**
     * @var TransactionInputCollection
     */
    private $inputs;

    /**
     * @var TransactionOutputCollection
     */
    private $outputs;

    /**
     * @var TransactionWitnessCollection
     */
    private $witness;

    /**
     * @var int|string
     */
    private $lockTime;

    /**
     * Transaction constructor.
     * @param int $nVersion
     * @param TransactionInputCollection|null $inputs
     * @param TransactionOutputCollection|null $outputs
     * @param TransactionWitnessCollection|null $witness
     * @param int $nLockTime
     */
    public function __construct(
        $nVersion = TransactionInterface::DEFAULT_VERSION,
        TransactionInputCollection $inputs = null,
        TransactionOutputCollection $outputs = null,
        TransactionWitnessCollection $witness = null,
        $nLockTime = 0
    ) {

        if (!is_numeric($nVersion)) {
            throw new \InvalidArgumentException('Transaction version must be numeric');
        }

        if (!is_numeric($nLockTime)) {
            throw new \InvalidArgumentException('Transaction locktime must be numeric');
        }

        $math = Bitcoin::getMath();
        if ($math->cmp($nVersion, TransactionInterface::MAX_VERSION) > 0) {
            throw new \InvalidArgumentException('Version must be less than ' . TransactionInterface::MAX_VERSION);
        }

        if ($math->cmp($nLockTime, 0) < 0 || $math->cmp($nLockTime, TransactionInterface::MAX_LOCKTIME) > 0) {
            throw new \InvalidArgumentException('Locktime must be positive and less than ' . TransactionInterface::MAX_LOCKTIME);
        }

        $this->version = $nVersion;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
        $this->inputs = $inputs ?: new TransactionInputCollection();
        $this->outputs = $outputs ?: new TransactionOutputCollection();
        $this->witness = $witness ?: new TransactionWitnessCollection();
        $this->lockTime = $nLockTime;
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}

        $this
            ->initFunctionAlias('version', 'getVersion')
            ->initFunctionAlias('inputs', 'getInputs')
            ->initFunctionAlias('outputs', 'getOutputs')
            ->initFunctionAlias('locktime', 'getLockTime');
    }

    /**
     * @return Transaction
     */
    public function __clone()
    {
        $this->inputs = clone $this->inputs;
        $this->outputs = clone $this->outputs;
    }

    /**
     * @return BufferInterface
     */
    public function getTxHash()
    {
        return Hash::sha256d($this->getBuffer());
    }

    /**
     * @return BufferInterface
     */
    public function getTxId()
    {
        return $this->getTxHash()->flip();
    }

    /**
     * @return int|string
     */
    public function getVersion()
    {
        return $this->version;
    }

    /**
     * Get the array of inputs in the transaction
     *
     * @return TransactionInputCollection
     */
    public function getInputs()
    {
        return $this->inputs;
    }

    /**
     * @param int $index
     * @return TransactionInputInterface
     */
    public function getInput($index)
    {
        return $this->inputs[$index];
    }

    /**
     * Get Outputs
     *
     * @return TransactionOutputCollection
     */
    public function getOutputs()
    {
        return $this->outputs;
    }

    /**
     * @param int $vout
     * @return TransactionOutputInterface
     */
    public function getOutput($vout)
    {
        return $this->outputs[$vout];
    }

    /**
     * @return TransactionWitnessCollection
     */
    public function getWitnesses()
    {
        return $this->witness;
    }

    /**
     * @return ScriptWitnessInterface
     */
    public function getWitness($index)
    {
        return $this->witness[$index];
    }

    /**
     * @param int $vout
     * @return OutPointInterface
     */
    public function makeOutpoint($vout)
    {
        $this->getOutput($vout);
class User
{
    private $email;

    public function getEmail()
    {
        return $this->email;
    }

    public function setEmail($email)
    {
        $this->email = $email;
    }
}
        return new OutPoint($this->getTxId(), $vout);
    }

    /**
     * @param int $vout
     * @return Utxo
     */
    public function makeUtxo($vout)
    {
        $output = $this->getOutput($vout);

        return new Utxo(
            new OutPoint($this->getTxId(), $vout),
            $output
        );
    }

    /**
     * Get Lock Time
     *
     * @return int|string
     */
    public function getLockTime()
    {
        return $this->lockTime;
    }

    /**
     * @return \BitWasp\Bitcoin\Transaction\SignatureHash\SigHash
     */
    public function getSignatureHash()
    {
        return new Hasher($this);
    }

    /**
     * @return int|string
     */
    public function getValueOut()
    {
        $math = Bitcoin::getMath();
        $value = 0;
        foreach ($this->outputs as $output) {
            $value = $math->add($value, $output->getValue());
        }

        return $value;
    }

    /**
     * @return bool
     */
    public function isCoinbase()
    {
        return count($this->inputs) === 1 && $this->getInput(0)->isCoinBase();
    }

    /**
     * @return Validator
     */
    public function validator()
    {
        return new Validator($this);
    }

    /**
     * @return BufferInterface
     */
    public function getBuffer()
    {
        return (new TransactionSerializer)->serialize($this);
    }

    /**
     * @return string
     */
    public function getWitnessBuffer()
    {
        return (new NTransactionSerializer())->serialize($this);
    }
}


1		<?php
2
3		namespace BitWasp\Bitcoin\Transaction;
4
5		use BitWasp\Bitcoin\Bitcoin;
6		use BitWasp\Bitcoin\Collection\Transaction\TransactionInputCollection;
7		use BitWasp\Bitcoin\Collection\Transaction\TransactionOutputCollection;
8		use BitWasp\Bitcoin\Collection\Transaction\TransactionWitnessCollection;
9		use BitWasp\Bitcoin\Crypto\Hash;
10		use BitWasp\Bitcoin\Script\ScriptWitnessInterface;
11		use BitWasp\Bitcoin\Serializable;
12		use BitWasp\Bitcoin\Serializer\Transaction\NTransactionSerializer;
13		use BitWasp\Bitcoin\Serializer\Transaction\TransactionSerializer;
14		use BitWasp\Bitcoin\Serializer\Transaction\WitnessTransactionSerializer;
15		use BitWasp\Bitcoin\Transaction\SignatureHash\Hasher;
16		use BitWasp\Bitcoin\Utxo\Utxo;
17		use BitWasp\Buffertools\BufferInterface;
18		use BitWasp\CommonTrait\FunctionAliasArrayAccess;
19
20		class Transaction extends Serializable implements TransactionInterface
21		{
22		use FunctionAliasArrayAccess;
23
24		/**
25		* @var int\|string
26		*/
27		private $version;
28
29		/**
30		* @var TransactionInputCollection
31		*/
32		private $inputs;
33
34		/**
35		* @var TransactionOutputCollection
36		*/
37		private $outputs;
38
39		/**
40		* @var TransactionWitnessCollection
41		*/
42		private $witness;
43
44		/**
45		* @var int\|string
46		*/
47	1220	private $lockTime;
48
49		/**
50		* Transaction constructor.
51		* @param int $nVersion
52		* @param TransactionInputCollection\|null $inputs
53		* @param TransactionOutputCollection\|null $outputs
54	1220	* @param TransactionWitnessCollection\|null $witness
55	6	* @param int $nLockTime
56		*/
57		public function __construct(
58	1214	$nVersion = TransactionInterface::DEFAULT_VERSION,
59	6	TransactionInputCollection $inputs = null,
60		TransactionOutputCollection $outputs = null,
61		TransactionWitnessCollection $witness = null,
62	1208	$nLockTime = 0
63	1208	) {
64	6
65		if (!is_numeric($nVersion)) {
66		throw new \InvalidArgumentException('Transaction version must be numeric');
67	1202	}
68	6
69		if (!is_numeric($nLockTime)) {
70		throw new \InvalidArgumentException('Transaction locktime must be numeric');
71	1196	}
72	1196
73	1196	$math = Bitcoin::getMath();
74	1196	if ($math->cmp($nVersion, TransactionInterface::MAX_VERSION) > 0) {
75		throw new \InvalidArgumentException('Version must be less than ' . TransactionInterface::MAX_VERSION);
76	1196	}
77	1196
78	1196	if ($math->cmp($nLockTime, 0) < 0 \|\| $math->cmp($nLockTime, TransactionInterface::MAX_LOCKTIME) > 0) {
79	1196	throw new \InvalidArgumentException('Locktime must be positive and less than ' . TransactionInterface::MAX_LOCKTIME);
80	1196	}
81	1196
82		$this->version = $nVersion;
		0 ignored issues – show Documentation Bug introduced 2015-11-21 03:53 UTC by Report Bug Copy Issue Report It seems like `$nVersion` can also be of type `double`. However, the property `$version` is declared as type `integer\|string`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
83		$this->inputs = $inputs ?: new TransactionInputCollection();
84		$this->outputs = $outputs ?: new TransactionOutputCollection();
85		$this->witness = $witness ?: new TransactionWitnessCollection();
86	112	$this->lockTime = $nLockTime;
		0 ignored issues – show Documentation Bug introduced 2015-11-21 03:53 UTC by Report Bug Copy Issue Report It seems like `$nLockTime` can also be of type `double`. However, the property `$lockTime` is declared as type `integer\|string`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
87
88	112	$this
89	112	->initFunctionAlias('version', 'getVersion')
90	112	->initFunctionAlias('inputs', 'getInputs')
91		->initFunctionAlias('outputs', 'getOutputs')
92		->initFunctionAlias('locktime', 'getLockTime');
93		}
94
95	184	/**
96		* @return Transaction
97	184	*/
98		public function __clone()
99		{
100		$this->inputs = clone $this->inputs;
101		$this->outputs = clone $this->outputs;
102		}
103	184
104		/**
105	184	* @return BufferInterface
106		*/
107		public function getTxHash()
108		{
109		return Hash::sha256d($this->getBuffer());
110		}
111	322
112		/**
113	322	* @return BufferInterface
114		*/
115		public function getTxId()
116		{
117		return $this->getTxHash()->flip();
118		}
119
120		/**
121	998	* @return int\|string
122		*/
123	998	public function getVersion()
124		{
125		return $this->version;
126		}
127
128		/**
129		* Get the array of inputs in the transaction
130	106	*
131		* @return TransactionInputCollection
132	106	*/
133		public function getInputs()
134		{
135		return $this->inputs;
136		}
137
138		/**
139		* @param int $index
140	332	* @return TransactionInputInterface
141		*/
142	332	public function getInput($index)
143		{
144		return $this->inputs[$index];
145		}
146
147		/**
148		* Get Outputs
149	154	*
150		* @return TransactionOutputCollection
151	154	*/
152		public function getOutputs()
153		{
154		return $this->outputs;
155		}
156
157		/**
158	24	* @param int $vout
159		* @return TransactionOutputInterface
160	24	*/
161	24	public function getOutput($vout)
162		{
163		return $this->outputs[$vout];
164		}
165
166		/**
167		* @return TransactionWitnessCollection
168		*/
169		public function getWitnesses()
170		{
171		return $this->witness;
172		}
173
174		/**
175		* @return ScriptWitnessInterface
176		*/
177		public function getWitness($index)
178		{
179		return $this->witness[$index];
180		}
181
182		/**
183	328	* @param int $vout
184		* @return OutPointInterface
185	328	*/
186		public function makeOutpoint($vout)
187		{
188		$this->getOutput($vout);
		0 ignored issues – show Unused Code introduced 2015-12-16 03:40 UTC by Report Bug Copy Issue Report The call to the method `BitWasp\Bitcoin\Transact...ransaction::getOutput()` seems un-needed as the method has no side-effects. PHP Analyzer performs a side-effects analysis of your code. A side-effect is basically anything that might be visible after the scope of the method is left. Let’s take a look at an example: class User { private $email; public function getEmail() { return $this->email; } public function setEmail($email) { $this->email = $email; } } If we look at the `getEmail()` method, we can see that it has no side-effect. Whether you call this method or not, no future calls to other methods are affected by this. As such code as the following is useless: $user = new User(); $user->getEmail(); // This line could safely be removed as it has no effect. On the hand, if we look at the `setEmail()`, this method _has_ side-effects. In the following case, we could not remove the method call: $user = new User(); $user->setEmail('email@domain'); // This line has a side-effect (it changes an // instance variable). Loading history...
189		return new OutPoint($this->getTxId(), $vout);
190		}
191	98
192		/**
193	98	* @param int $vout
194		* @return Utxo
195		*/
196		public function makeUtxo($vout)
197		{
198		$output = $this->getOutput($vout);
199	6
200		return new Utxo(
201	6	new OutPoint($this->getTxId(), $vout),
202	6	$output
203	6	);
204	6	}
205	6
206		/**
207	6	* Get Lock Time
208		*
209		* @return int\|string
210		*/
211		public function getLockTime()
212		{
213	6	return $this->lockTime;
214		}
215	6
216		/**
217		* @return \BitWasp\Bitcoin\Transaction\SignatureHash\SigHash
218		*/
219		public function getSignatureHash()
220		{
221		return new Hasher($this);
222		}
223
224		/**
225		* @return int\|string
226		*/
227		public function getValueOut()
228		{
229	292	$math = Bitcoin::getMath();
230		$value = 0;
231	292	foreach ($this->outputs as $output) {
232		$value = $math->add($value, $output->getValue());
233		}
234
235		return $value;
236		}
237
238		/**
239		* @return bool
240		*/
241		public function isCoinbase()
242		{
243		return count($this->inputs) === 1 && $this->getInput(0)->isCoinBase();
244		}
245
246		/**
247		* @return Validator
248		*/
249		public function validator()
250		{
251		return new Validator($this);
252		}
253
254		/**
255		* @return BufferInterface
256		*/
257		public function getBuffer()
258		{
259		return (new TransactionSerializer)->serialize($this);
260		}
261
262		/**
263		* @return string
264		*/
265		public function getWitnessBuffer()
266		{
267		return (new NTransactionSerializer())->serialize($this);
268		}
269		}
270

Bit-Wasp / bitcoin-php

Pull Request — master (#241)

Transaction::validator() A

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Duplication

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Importance

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