OutputClassifier::classify() - Code Metrics - Inspection of "Shorthand script type constants in OutputClassifie..." - Bit-Wasp/bitcoin-php - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#412)

by thomas

created 2016-11-25 10:51 UTC

OutputClassifier::classify() D

↳ Parent: OutputClassifier

Complexity

Conditions	9
Paths	9

Size

Total Lines	34
Code Lines	29

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	90

Importance

Changes

Metric	Value
cc	9
eloc	29
nc	9
nop	2
dl	0
loc	34
ccs	0
cts	0
cp	0
crap	90
rs	4.909
c	0
b	0
f	0

<?php

namespace BitWasp\Bitcoin\Script\Classifier;

use BitWasp\Bitcoin\Script\Parser\Operation;
use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Key\PublicKey;
use BitWasp\Bitcoin\Script\Opcodes;
use BitWasp\Bitcoin\Script\ScriptInterface;
use BitWasp\Buffertools\Buffer;
use BitWasp\Buffertools\BufferInterface;

class OutputClassifier
{
    const PAYTOPUBKEY = 'pubkey';
    const PAYTOPUBKEYHASH = 'pubkeyhash';
    const PAYTOSCRIPTHASH = 'scripthash';
    const WITNESS_V0_KEYHASH = 'witness_v0_keyhash';
    const WITNESS_V0_SCRIPTHASH = 'witness_v0_scripthash';
    const MULTISIG = 'multisig';
    const NULLDATA = 'nulldata';
    const UNKNOWN = 'nonstandard';
    const NONSTANDARD = 'nonstandard';

    const P2PK = 'pubkey';
    const P2PKH = 'pubkeyhash';
    const P2SH = 'scripthash';
    const P2WSH = 'witness_v0_scripthash';
    const P2WKH = 'witness_v0_keyhash';

    const WITNESS_COINBASE_COMMITMENT = 'witness_coinbase_commitment';

    /**
     * @param Operation[] $decoded
     * @return false|BufferInterface
     */
    private function decodeP2PK(array $decoded)
    {
        if (count($decoded) !== 2 || !$decoded[0]->isPush()) {
            return false;
        }

        $size = $decoded[0]->getDataSize();
        if ($size === 33 || $size === 65) {
            $op = $decoded[1];
            if ($op->getOp() === Opcodes::OP_CHECKSIG) {
                return $decoded[0]->getData();
            }
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isPayToPublicKey(ScriptInterface $script)
    {
        try {
            return $this->decodeP2PK($script->getScriptParser()->decode()) !== false;
        } catch (\Exception $e) {
            /** Return false later */
        }

        return false;
    }

    /**
     * @param Operation[] $decoded
     * @return BufferInterface|false
     */
    private function decodeP2PKH(array $decoded)
    {
        if (count($decoded) !== 5) {
            return false;
        }

        $dup = $decoded[0];
        $hash = $decoded[1];
        $buf = $decoded[2];
        $eq = $decoded[3];
        $checksig = $decoded[4];

        foreach ([$dup, $hash, $eq, $checksig] as $op) {
            /** @var Operation $op */
            if ($op->isPush()) {
                return false;
            }
        }

        if ($dup->getOp() === Opcodes::OP_DUP
            && $hash->getOp() === Opcodes::OP_HASH160
            && $buf->isPush() && $buf->getDataSize() === 20
            && $eq->getOp() === Opcodes::OP_EQUALVERIFY
            && $checksig->getOp() === Opcodes::OP_CHECKSIG) {
            return $decoded[2]->getData();
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isPayToPublicKeyHash(ScriptInterface $script)
    {
        try {
            return $this->decodeP2PKH($script->getScriptParser()->decode()) !== false;
        } catch (\Exception $e) {
            /** Return false later */
        }

        return false;
    }

    /**
     * @param array $decoded
     * @return bool
     */
    private function decodeP2SH(array $decoded)
    {
        if (count($decoded) !== 3) {
            return false;
        }

        $op_hash = $decoded[0];
        if ($op_hash->isPush() || $op_hash->getOp() !== Opcodes::OP_HASH160) {
            return false;
        }

        $buffer = $decoded[1];
        if (!$buffer->isPush() || $buffer->getOp() !== 20) {
            return false;
        }

        $eq = $decoded[2];
        if (!$eq->isPush() && $eq->getOp() === Opcodes::OP_EQUAL) {
            return $decoded[1]->getData();
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isPayToScriptHash(ScriptInterface $script)
    {
        try {
            return $this->decodeP2SH($script->getScriptParser()->decode()) !== false;
        } catch (\Exception $e) {
            /** Return false later */
        }

        return false;
    }

    /**
     * @param Operation[] $decoded
     * @return bool|BufferInterface[]
     */
    private function decodeMultisig(array $decoded)
    {
        $count = count($decoded);
        if ($count <= 3) {
            return false;
        }

        $mOp = $decoded[0];
        $nOp = $decoded[$count - 2];
        $checksig = $decoded[$count - 1];
        if ($mOp->isPush() || $nOp->isPush() || $checksig->isPush()) {
            return false;
        }

        /** @var Operation[] $vKeys */
        $vKeys = array_slice($decoded, 1, -2);
        $solutions = [];
        foreach ($vKeys as $key) {
            if (!$key->isPush() || !PublicKey::isCompressedOrUncompressed($key->getData())) {
                return false;
            }
            $solutions[] = $key->getData();
        }

        if ($mOp->getOp() >= Opcodes::OP_0
            && $nOp->getOp() <= Opcodes::OP_16
            && $checksig->getOp() === Opcodes::OP_CHECKMULTISIG) {
            return $solutions;
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isMultisig(ScriptInterface $script)
    {
        try {
            return $this->decodeMultisig($script->getScriptParser()->decode()) !== false;
        } catch (\Exception $e) {
            /** Return false later */
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @param Operation[] $decoded
     * @return false|BufferInterface
     */
    private function decodeWitnessNoLimit(ScriptInterface $script, array $decoded)
    {
        $size = $script->getBuffer()->getSize();
        if ($size < 4 || $size > 40) {
            return false;
        }
        if (count($decoded) !== 2 || !$decoded[1]->isPush()) {
            return false;
        }

        $version = $decoded[0]->getOp();
        if ($version !== Opcodes::OP_0 && ($version < Opcodes::OP_1 || $version > Opcodes::OP_16)) {
            return false;
        }

        $witness = $decoded[1];
        if ($size === $witness->getDataSize() + 2) {
            return $witness->getData();
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @param int $limit
     * @param array $decoded
     * @return BufferInterface|false
     */
    private function decodeWithLimit(ScriptInterface $script, $limit, array $decoded)
    {
        if (($data = $this->decodeWitnessNoLimit($script, $decoded))) {
            if ($data->getSize() !== $limit) {
                return false;
            }

            return $data;
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @param Operation[] $decoded
     * @return BufferInterface|false
     */
    private function decodeP2WKH(ScriptInterface $script, array $decoded)
    {
        return $this->decodeWithLimit($script, 20, $decoded);
    }

    /**
     * @param ScriptInterface $script
     * @param Operation[] $decoded
     * @return BufferInterface|false
     */
    private function decodeP2WSH(ScriptInterface $script, array $decoded)
    {
        return $this->decodeWithLimit($script, 32, $decoded);
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isWitness(ScriptInterface $script)
    {
        try {
            return $this->decodeWitnessNoLimit($script, $script->getScriptParser()->decode())!== false;
        } catch (\Exception $e) {
            /** Return false later */
        }

        return false;
    }

    /**
     * @param Operation[] $decoded
     * @return false|BufferInterface
     */
    private function decodeNullData(array $decoded)
    {
        if (count($decoded) !== 2) {
            return false;
        }

        if ($decoded[0]->getOp() === Opcodes::OP_RETURN && $decoded[1]->isPush()) {
            return $decoded[1]->getData();
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isNullData(ScriptInterface $script)
    {
        try {
            return $this->decodeNullData($script->getScriptParser()->decode()) !== false;
        } catch (\Exception $e) {

        }

        return false;
    }

    /**
     * @param array $decoded
     * @return bool|BufferInterface
     */
    private function decodeWitnessCoinbaseCommitment(array $decoded)
    {
        if (count($decoded) !== 2) {
            return false;
        }

        if ($decoded[0]->isPush() || $decoded[0]->getOp() !== Opcodes::OP_RETURN) {
            return false;
        }

        if ($decoded[1]->isPush()) {
            $data = $decoded[1]->getData()->getBinary();
            if ($decoded[1]->getDataSize() === 0x24 && substr($data, 0, 4) === "\xaa\x21\xa9\xed") {
                return new Buffer(substr($data, 4));
            }
        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @return bool
     */
    public function isWitnessCoinbaseCommitment(ScriptInterface $script)
    {
        try {
            return $this->decodeWitnessCoinbaseCommitment($script->getScriptParser()->decode()) !== false;
        } catch (\Exception $e) {

        }

        return false;
    }

    /**
     * @param ScriptInterface $script
     * @param mixed $solution
     * @return string
     */
    public function classify(ScriptInterface $script, &$solution = null)
    {
        $decoded = $script->getScriptParser()->decode();
        $type = self::NONSTANDARD;
        $solution = null;

        if (($pubKey = $this->decodeP2PK($decoded))) {
            $type = self::PAYTOPUBKEY;
            $solution = $pubKey;
        } else if (($pubKeyHash = $this->decodeP2PKH($decoded))) {
            $type = self::PAYTOPUBKEYHASH;
            $solution = $pubKeyHash;
        } else if (($multisig = $this->decodeMultisig($decoded))) {
            $type = self::MULTISIG;
            $solution = $multisig;
        } else if (($scriptHash = $this->decodeP2SH($decoded))) {
            $type = self::PAYTOSCRIPTHASH;
            $solution = $scriptHash;
        } else if (($witnessScriptHash = $this->decodeP2WSH($script, $decoded))) {
            $type = self::WITNESS_V0_SCRIPTHASH;
            $solution = $witnessScriptHash;
        } else if (($witnessKeyHash = $this->decodeP2WKH($script, $decoded))) {
            $type = self::WITNESS_V0_KEYHASH;
            $solution = $witnessKeyHash;
        } else if (($witCommitHash = $this->decodeWitnessCoinbaseCommitment($decoded))) {
            $type = self::WITNESS_COINBASE_COMMITMENT;
            $solution = $witCommitHash;
        } else if (($nullData = $this->decodeNullData($decoded))) {
            $type = self::NULLDATA;
            $solution = $nullData;
        }

        return $type;
    }

    /**
     * @param ScriptInterface $script
     * @return OutputData
     */
    public function decode(ScriptInterface $script)
    {
        $solution = null;
        $type = $this->classify($script, $solution);
        return new OutputData($type, $script, $solution);
    }
}


1		<?php
2
3		namespace BitWasp\Bitcoin\Script\Classifier;
4
5		use BitWasp\Bitcoin\Script\Parser\Operation;
6		use BitWasp\Bitcoin\Crypto\EcAdapter\Impl\PhpEcc\Key\PublicKey;
7		use BitWasp\Bitcoin\Script\Opcodes;
8		use BitWasp\Bitcoin\Script\ScriptInterface;
9		use BitWasp\Buffertools\Buffer;
10		use BitWasp\Buffertools\BufferInterface;
11
12		class OutputClassifier
13		{
14		const PAYTOPUBKEY = 'pubkey';
15		const PAYTOPUBKEYHASH = 'pubkeyhash';
16		const PAYTOSCRIPTHASH = 'scripthash';
17		const WITNESS_V0_KEYHASH = 'witness_v0_keyhash';
18		const WITNESS_V0_SCRIPTHASH = 'witness_v0_scripthash';
19		const MULTISIG = 'multisig';
20		const NULLDATA = 'nulldata';
21		const UNKNOWN = 'nonstandard';
22		const NONSTANDARD = 'nonstandard';
23
24		const P2PK = 'pubkey';
25		const P2PKH = 'pubkeyhash';
26	372	const P2SH = 'scripthash';
27		const P2WSH = 'witness_v0_scripthash';
28	372	const P2WKH = 'witness_v0_keyhash';
29	306
30		const WITNESS_COINBASE_COMMITMENT = 'witness_coinbase_commitment';
31
32	174	/**
33	174	* @param Operation[] $decoded
34	84	* @return false\|BufferInterface
35	84	*/
36	78	private function decodeP2PK(array $decoded)
37		{
38	6	if (count($decoded) !== 2 \|\| !$decoded[0]->isPush()) {
39		return false;
40	120	}
41
42		$size = $decoded[0]->getDataSize();
43		if ($size === 33 \|\| $size === 65) {
44		$op = $decoded[1];
45		if ($op->getOp() === Opcodes::OP_CHECKSIG) {
46		return $decoded[0]->getData();
47	51	}
48		}
49
50	51	return false;
51		}
52
53		/**
54		* @param ScriptInterface $script
55		* @return bool
56		*/
57		public function isPayToPublicKey(ScriptInterface $script)
58		{
59		try {
60		return $this->decodeP2PK($script->getScriptParser()->decode()) !== false;
61		} catch (\Exception $e) {
62	330	/** Return false later */
63		}
64	330
65	228	return false;
66		}
67
68	180	/**
69	180	* @param Operation[] $decoded
70	180	* @return BufferInterface\|false
71	180	*/
72	180	private function decodeP2PKH(array $decoded)
73		{
74	180	if (count($decoded) !== 5) {
75		return false;
76	180	}
77	99
78		$dup = $decoded[0];
79	90	$hash = $decoded[1];
80		$buf = $decoded[2];
81	168	$eq = $decoded[3];
82	168	$checksig = $decoded[4];
83	168
84	168	foreach ([$dup, $hash, $eq, $checksig] as $op) {
85	168	/** @var Operation $op */
86	168	if ($op->isPush()) {
87		return false;
88		}
89	6	}
90
91		if ($dup->getOp() === Opcodes::OP_DUP
92		&& $hash->getOp() === Opcodes::OP_HASH160
93		&& $buf->isPush() && $buf->getDataSize() === 20
94		&& $eq->getOp() === Opcodes::OP_EQUALVERIFY
95		&& $checksig->getOp() === Opcodes::OP_CHECKSIG) {
96	36	return $decoded[2]->getData();
97		}
98
99	36	return false;
100		}
101
102		/**
103		* @param ScriptInterface $script
104		* @return bool
105		*/
106		public function isPayToPublicKeyHash(ScriptInterface $script)
107		{
108		try {
109		return $this->decodeP2PKH($script->getScriptParser()->decode()) !== false;
110		} catch (\Exception $e) {
111	1232	/** Return false later */
112		}
113	1232
114	984	return false;
115		}
116
117	314	/**
118	314	* @param array $decoded
119	118	* @return bool
120		*/
121		private function decodeP2SH(array $decoded)
122	202	{
123	202	if (count($decoded) !== 3) {
124	8	return false;
125		}
126
127	200	$op_hash = $decoded[0];
128	200	if ($op_hash->isPush() \|\| $op_hash->getOp() !== Opcodes::OP_HASH160) {
129	200	return false;
130		}
131
132	6	$buffer = $decoded[1];
133		if (!$buffer->isPush() \|\| $buffer->getOp() !== 20) {
134		return false;
135		}
136
137		$eq = $decoded[2];
138		if (!$eq->isPush() && $eq->getOp() === Opcodes::OP_EQUAL) {
139	1080	return $decoded[1]->getData();
140		}
141
142	1080	return false;
143		}
144
145		/**
146		* @param ScriptInterface $script
147		* @return bool
148		*/
149		public function isPayToScriptHash(ScriptInterface $script)
150		{
151		try {
152		return $this->decodeP2SH($script->getScriptParser()->decode()) !== false;
153		} catch (\Exception $e) {
154	264	/** Return false later */
155		}
156	264
157	264	return false;
158	222	}
159
160		/**
161	78	* @param Operation[] $decoded
162	78	* @return bool\|BufferInterface[]
163	78	*/
164	78	private function decodeMultisig(array $decoded)
165	6	{
166		$count = count($decoded);
167		if ($count <= 3) {
168		return false;
169	78	}
170	78
171	78	$mOp = $decoded[0];
172	78	$nOp = $decoded[$count - 2];
173	12	$checksig = $decoded[$count - 1];
174		if ($mOp->isPush() \|\| $nOp->isPush() \|\| $checksig->isPush()) {
175	72	return false;
176	36	}
177
178	72	/** @var Operation[] $vKeys */
179	72	$vKeys = array_slice($decoded, 1, -2);
180	72	$solutions = [];
181	72	foreach ($vKeys as $key) {
182		if (!$key->isPush() \|\| !PublicKey::isCompressedOrUncompressed($key->getData())) {
183		return false;
184	6	}
185		$solutions[] = $key->getData();
186		}
187
188		if ($mOp->getOp() >= Opcodes::OP_0
189		&& $nOp->getOp() <= Opcodes::OP_16
190		&& $checksig->getOp() === Opcodes::OP_CHECKMULTISIG) {
191	719	return $solutions;
192		}
193
194	719	return false;
195		}
196
197		/**
198		* @param ScriptInterface $script
199		* @return bool
200		*/
201		public function isMultisig(ScriptInterface $script)
202		{
203		try {
204		return $this->decodeMultisig($script->getScriptParser()->decode()) !== false;
205		} catch (\Exception $e) {
206		/** Return false later */
207	168	}
208
209	168	return false;
210	168	}
211	60
212		/**
213	120	* @param ScriptInterface $script
214	18	* @param Operation[] $decoded
215		* @return false\|BufferInterface
216		*/
217	108	private function decodeWitnessNoLimit(ScriptInterface $script, array $decoded)
218	108	{
219	6	$size = $script->getBuffer()->getSize();
220		if ($size < 4 \|\| $size > 40) {
221		return false;
222	108	}
223	108	if (count($decoded) !== 2 \|\| !$decoded[1]->isPush()) {
224	108	return false;
225		}
226
227		$version = $decoded[0]->getOp();
228		if ($version !== Opcodes::OP_0 && ($version < Opcodes::OP_1 \|\| $version > Opcodes::OP_16)) {
229		return false;
230		}
231
232		$witness = $decoded[1];
233		if ($size === $witness->getDataSize() + 2) {
234		return $witness->getData();
235		}
236	138
237		return false;
238	138	}
239	102
240	30	/**
241		* @param ScriptInterface $script
242		* @param int $limit
243	102	* @param array $decoded
244		* @return BufferInterface\|false
245		*/
246	42	private function decodeWithLimit(ScriptInterface $script, $limit, array $decoded)
247		{
248		if (($data = $this->decodeWitnessNoLimit($script, $decoded))) {
249		if ($data->getSize() !== $limit) {
250		return false;
251		}
252
253		return $data;
254	72	}
255
256	72	return false;
257		}
258
259		/**
260		* @param ScriptInterface $script
261		* @param Operation[] $decoded
262		* @return BufferInterface\|false
263		*/
264	138	private function decodeP2WKH(ScriptInterface $script, array $decoded)
265		{
266	138	return $this->decodeWithLimit($script, 20, $decoded);
267		}
268
269		/**
270		* @param ScriptInterface $script
271		* @param Operation[] $decoded
272		* @return BufferInterface\|false
273	30	*/
274		private function decodeP2WSH(ScriptInterface $script, array $decoded)
275		{
276	30	return $this->decodeWithLimit($script, 32, $decoded);
277	6	}
278
279		/**
280		* @param ScriptInterface $script
281	6	* @return bool
282		*/
283		public function isWitness(ScriptInterface $script)
284		{
285		try {
286		return $this->decodeWitnessNoLimit($script, $script->getScriptParser()->decode())!== false;
287		} catch (\Exception $e) {
288	42	/** Return false later */
289		}
290	42
291	36	return false;
292		}
293
294	12	/**
295	6	* @param Operation[] $decoded
296		* @return false\|BufferInterface
297		*/
298	6	private function decodeNullData(array $decoded)
299		{
300		if (count($decoded) !== 2) {
301		return false;
302		}
303
304		if ($decoded[0]->getOp() === Opcodes::OP_RETURN && $decoded[1]->isPush()) {
305	6	return $decoded[1]->getData();
306		}
307
308	6	return false;
309		}
310
311		/**
312		* @param ScriptInterface $script
313		* @return bool
314		*/
315		public function isNullData(ScriptInterface $script)
316		{
317		try {
318		return $this->decodeNullData($script->getScriptParser()->decode()) !== false;
319		} catch (\Exception $e) {
		0 ignored issues – show Coding Style Comprehensibility introduced 2016-11-25 14:58 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history...
320	354	}
321
322	354	return false;
323	354	}
324	354
325		/**
326	354	* @param array $decoded
327	66	* @return bool\|BufferInterface
328	66	*/
329	336	private function decodeWitnessCoinbaseCommitment(array $decoded)
330	162	{
331	162	if (count($decoded) !== 2) {
332	273	return false;
333	60	}
334	60
335	213	if ($decoded[0]->isPush() \|\| $decoded[0]->getOp() !== Opcodes::OP_RETURN) {
336	114	return false;
337	114	}
338	168
339	72	if ($decoded[1]->isPush()) {
340	72	$data = $decoded[1]->getData()->getBinary();
341	105	if ($decoded[1]->getDataSize() === 0x24 && substr($data, 0, 4) === "\xaa\x21\xa9\xed") {
342	30	return new Buffer(substr($data, 4));
343	30	}
344	57	}
345	6
346	6	return false;
347	3	}
348
349	354	/**
350		* @param ScriptInterface $script
351		* @return bool
352		*/
353		public function isWitnessCoinbaseCommitment(ScriptInterface $script)
354		{
355		try {
356	258	return $this->decodeWitnessCoinbaseCommitment($script->getScriptParser()->decode()) !== false;
357		} catch (\Exception $e) {
		0 ignored issues – show Coding Style Comprehensibility introduced 2016-11-25 14:58 UTC by Report Bug Copy Issue Report Consider adding a comment why this CATCH block is empty. Loading history...
358	258	}
359	258
360	258	return false;
361		}
362
363		/**
364		* @param ScriptInterface $script
365		* @param mixed $solution
366		* @return string
367		*/
368		public function classify(ScriptInterface $script, &$solution = null)
369		{
370		$decoded = $script->getScriptParser()->decode();
371		$type = self::NONSTANDARD;
372		$solution = null;
373
374		if (($pubKey = $this->decodeP2PK($decoded))) {
375		$type = self::PAYTOPUBKEY;
376		$solution = $pubKey;
377		} else if (($pubKeyHash = $this->decodeP2PKH($decoded))) {
378		$type = self::PAYTOPUBKEYHASH;
379		$solution = $pubKeyHash;
380		} else if (($multisig = $this->decodeMultisig($decoded))) {
381		$type = self::MULTISIG;
382		$solution = $multisig;
383		} else if (($scriptHash = $this->decodeP2SH($decoded))) {
384		$type = self::PAYTOSCRIPTHASH;
385		$solution = $scriptHash;
386		} else if (($witnessScriptHash = $this->decodeP2WSH($script, $decoded))) {
387		$type = self::WITNESS_V0_SCRIPTHASH;
388		$solution = $witnessScriptHash;
389		} else if (($witnessKeyHash = $this->decodeP2WKH($script, $decoded))) {
390		$type = self::WITNESS_V0_KEYHASH;
391		$solution = $witnessKeyHash;
392		} else if (($witCommitHash = $this->decodeWitnessCoinbaseCommitment($decoded))) {
393		$type = self::WITNESS_COINBASE_COMMITMENT;
394		$solution = $witCommitHash;
395		} else if (($nullData = $this->decodeNullData($decoded))) {
396		$type = self::NULLDATA;
397		$solution = $nullData;
398		}
399
400		return $type;
401		}
402
403		/**
404		* @param ScriptInterface $script
405		* @return OutputData
406		*/
407		public function decode(ScriptInterface $script)
408		{
409		$solution = null;
410		$type = $this->classify($script, $solution);
411		return new OutputData($type, $script, $solution);
412		}
413		}
414

Bit-Wasp / bitcoin-php

Pull Request — master (#412)

OutputClassifier::classify() D

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